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SPAJ 140 C Overcurrent and earth-fault relay

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					SPAJ 140 C
Overcurrent and earth-fault relay
User´s manual and Technical description




                                                                                                                       3I >
                                                                            2                                           I

                  f n = 50Hz                   I n = 1A 5A     (I )         5           I   L1   I   L2   I   L3   I 0 IRF
                         60Hz                  I n = 1A 5A     (I o )


                                   SPAJ 140 C
                         80...265V –
                                   ~                                                                                RESET
                                                                                                 I >/I n
                         18...80V –                                 U aux                                           STEP

                                                                                                 t > [s]
                                                                                                 k
                                            SPCJ 4D29
                                                                                                 I >> / I n
                     REGISTERS                              OPER.IND.
                                                                                                 t >> [s]
                     0        0    0   0                0
                                                                                                 I 0 >/ I n
                    1     I    /I n
                              L1                        1    I >START
                                                                                                 t 0 > [s ]
                    2     I L2 / I n                    2    I >TRIP                             k0
                    3     I L3 / I n                    3       >
                                                             I > START
                                                                                                 I o >> /I n
                    4    I max (15min) /I n             4       >
                                                             I > TRIP
                    5     t (I > )[ % ]                 5    I o >START                          t o >>[s]
                    6     t (I > )[ % ]
                                >                       6    I o >TRIP                                             PROGRAM
                                                                                                 SGF
                    7    I o /I n                       7         >
                                                             I o > START
                    8     t (I o > )[ % ]               8         >
                                                             I o > TRIP                          SGB
                    9     t (I o > )[ % ]
                                  >                     9    CBFP
                                                                                                 SGR
                                                                                                                     TRIP
          0074A




                                                                                0012A




                   RS 611 006 -                   Ser.No.                                                 SPCJ 4D29
1MRS 750629-MUM EN
                                                                                                       SPAJ 140 C
Issued 97-01-30
Version A (replaces 34 SPAJ 16 EN1)                                                            Combined overcurrent
Checked TK
Approved TK                                                                                      and earth-fault relay
Data subject to change without notice



Contents                     Features .......................................................................................................................... 2
                             Application ..................................................................................................................... 2
                             Description of operation ................................................................................................. 3
                             Connections ................................................................................................................... 4
                             Signal diagram ................................................................................................................ 7
                             Signal abbreviations ........................................................................................................ 7
                             Start and operation indicators ......................................................................................... 8
                             Power supply and output relay module ........................................................................... 9
                             Technical data .............................................................................................................. 10
                             Maintenance and repairs ............................................................................................... 13
                             Spare parts .................................................................................................................... 13
                             Dimensions and instructions for mounting .................................................................. 14
                             Order information ........................................................................................................ 14


                             The complete manual for the relay SPAJ 140 C contains the following submanuals:

                             General relay description for SPAJ 140 C                                                     1MRS 750629-MUM EN
                             General characteristics of D type relay modules                                              1MRS 750066-MUM EN
                             Combined overcurrent and earth-fault relay module
                             type SPCJ 4D29                                                                               1MRS 750119-MUM EN


Features                     Three-phase, low-set phase overcurrent unit                              Extensive data communication capabilities over
                             with definite time or inverse definite minimum                           built-in serial port
                             time (IDMT) characteristic
                                                                                                      Outstanding design flexibility for easy selection
                             Three-phase, high-set phase overcurrent unit                             of appropriate operation schemes for different
                             with instantaneous or definite time function                             applications

                             Low-set, non-directional earth-fault unit with                           Numerical display of setting values, measured
                             definite time or inverse definite minimum time                           values, memorized fault values, fault codes etc.
                             (IDMT) characteristic
                                                                                                      Enhanced system reliability and availability due
                             High-set, non-directional earth-fault unit with                          to continuous hardware and software self-super-
                             instantaneous or definite time function                                  vision with auto-diagnosis

                             Built-in breaker failure protection function                             Powerful software support for setting and
                                                                                                      parametrizing of the relay and for recording of
                             Two heavy-duty and four light-duty output                                relay parameters with a portable PC.
                             relays with field-selectable configuration


Application                  The combined overcurrent and earth-fault relay                           flexible tripping and signalling facilities. The
                             SPAJ 140 C is intended to be used for the                                overcurrent and earth-fault relays can also be
                             selective short-circuit and earth-fault protection                       used inother applications requiring single-, two-
                             of radial feeders in solidly earthed, resistance                         or three-phase overcurrent protection and non-
                             earthed or impedance earthed power systems.                              directional earth-fault protection. The com-
                             The integrated protection relay includes a phase                         bined overcurrent and earth-fault relay also fea-
                             overcurrent unit and an earth-fault unit with                            tures circuit breaker failure protection.

2
Description of   The combined overcurrent and earth-fault relay            starts delivering a start signal after a preset ~40
operation        is a secondary relay to be connected to the               ms start time, when the set start current is
                 current transformers of the protected object.             exceeded. When the set operate time elapses, the
                 The three-phase overcurrent unit and the earth-           earth-fault unit operates.
                 fault unit continuously measure the phase cur-
                 rents and the neutral current of the protected            The low-set stage of the overcurrent unit and the
                 object. On detection of a fault the relay starts,         low-set stage of the earth-fault unit may be given
                 trips the circuit breaker, initiates auto-reclosing,      definite time or inverse definite minimum time
                 provides alarm, records fault data etc. in accord-        (IDMT) characteristic. When the IDMT char-
                 ance with the application and the configured              acteristic is chosen six time/current curves are
                 relay functions.                                          available. Four of the curves comply with the BS
                                                                           142 and IEC 255 and are named "Normal
                 When the phase current exceeds the set start              inverse", "Very inverse", "Extremely inverse"
                 current of the low-set stage I>, the overcurrent          and "Long-time inverse". The two additional
                 unit starts delivering a start signal after a preset      inverse time curves called the "RI-curve" and
                 ~60 ms start time. When the set operate time at           the "RXIDG-curve" are also provided.
                 definite time operation or the calculated operate
                 time at inverse time operation elapses, the over-         By appropriate configuration of the output relay
                 current unit operates. In the same way the high-          matrix, the start signals of the overcurrent and
                 set stage I>> of the overcurrent unit starts deliv-       earth-fault units are obtained as contact func-
                 ering a start signal after a preset ~40 ms start          tions. The start signals can be used for blocking
                 time, when the set start current is exceeded.             co-operating protection relays, for signalling
                 When the set operate time elapses, the overcur-           and for initiating auto-reclosing.
                 rent unit operates.
                                                                           The relay includes one external binary input,
                 When the earth-fault current exceeds the set              which is controlled by an external control volt-
                 start current of the low-set stage I0>, the earth-        age. The function of the control input is deter-
                 fault unit starts delivering a start signal after a       mined by selector switches in the protection
                 preset ~60 ms start time. When the set operate            relay module. The control input can be used for
                 time at definite time operation or the calculated         blocking the operation of one or more protec-
                 operate time at inverse time operation elapses,           tion stages, for resetting a latched output relay in
                 the earth-fault unit operates. In the same way            the manual reset mode or for enforcing a new set
                 the high-set stage I0>> of the earth-fault unit           of relay setting parameters by remote control.



                                                        THREE PHASE DEFINITE TIME                  TRIP
                                                        OR INVERSE TIME LOW-SET         51
                                       IL1              OVERCURRENT PROTECTION



                                                        THREE PHASE INSTANTANEOUS
                                                        OR DEFINITE TIME HIGH-SET                SIGNAL 1
                                                                                        50
                                                        OVERCURRENT PROTECTION

                                       IL2

                                                        DEFINITE TIME OR INVERSE TIME
                                                        LOW-SET EARTH-FAULT             51 N     SIGNAL 2
                                                        PROTECTION


                                      IL3
                                                         INSTANTANEOUS OR DEFINITE
                                                         TIME HIGH-SET EARTH-FAULT      50 N
                                                         PROTECTION                              START 1




                                                        REMOTE RESET, REMOTE SETTING
                                       Io               CONTROL OR BLOCKING INPUT FOR            START 2
                                                        THE DIFFERENT CURRENT STAGES




                                                        CIRCUIT BREAKER FAILURE                     IRF
                                                        PROTECTION                      51BF
                                       BLOCKING
                                       OR RESET
                                                                                                SERIAL I/O
                                                          SERIAL COMMUNICATION PORT




                 Fig. 1. Protection functions of the combined overcurrent and earth-fault relay type SPAJ 140 C.
                                                                                                                             3
                                                                                                                                                                                                                                                                                                                                                                      Fig. 2. Connection diagram for the combined overcurrent and earth-fault relay type SPAJ 140 C.
                                                                                                       L1
                                                                                                       L2
                                                                                                       L3
                                                                                                                                                                                                                                                                                                                              -
                                                                                                                                                                                                                                                                                                                      0
                                                                                                                                                                                                                                                                                                               -      I
                                                                                                                                                                                                                             I                                         0
                                                                                                                                                                                                                                                                 +                                        +
                                                                                                                                                                                                                                                                                                                                                         Rx      Tx




                                                                                                                                                                                                                                                                                                                                              SPA-ZC_
                                                                                         + (~)
                                                                                                      U aux                                                                                                                                                                                                                       +
                                                                                         - (~)
                                                 EXTERNAL                          IRF                          START 1                                                        START 2                                SIGNAL 1                                       SIGNAL 2                                             TRIP
                                                 CONTROL                                                                                                                                                                                                                                                                                                SERIAL
                                                                                                                                                                                                                                                                                                                                                         PORT
              63   1 23 4 5 6   7 8 9 25 26 27    11   10           62 61 70 71 72                                  74 75                                                       77 78                                   80 81                                         68 69                                               65 66
                     5A
                     1A




                                  5A
                                  1A


                                          5A
                                          1A
                          5A
                          1A




                                                                    ~                             +                                                  +                                                       +                                      +                                             +                                       +
                                                                                              F                                            E                                                 D                                         C                                              B                                           A
                                                 U2                 + -
                                                                                                                                  TS1                                                SS1                                      SS2                                           SS3                                               TS2
                                                                                                                                               1                                                    1                                          1                                             1                                        1                       TRIP
                                                                                                                                                                                                                                                                                                                   LATCHING
                                                                                                                                                                                                                                                                                                                                                 R
              U3                                                                                                                                                                                                                                                                                                   SGB/6
                                                                                                                                                                                                                                                                                                                   SGB/7




                                                                                                                                                                                                                                                                           SGR2/2
                                                                                                                                                                                                                                                                                    SGR2/4
                                                                                                                                                                                                                                                                                             SGR2/6
                                                                                                                                                                                                                                                                                                      SGR2/8
                                                                                                       SGR3/1
                                                                                                                SGR3/2
                                                                                                                         SGR3/3
                                                                                                                                  SGR3/4
                                                                                                                                           SGR3/5
                                                                                                                                                    SGR3/6
                                                                                                                                                             SGR3/7
                                                                                                                                                                      SGR3/8




                                                                                                                                                                                                                             SGR2/1
                                                                                                                                                                                  SGR1/1
                                                                                                                                                                                           SGR1/3
                                                                                                                                                                                                    SGR1/5
                                                                                                                                                                                                             SGR1/7




                                                                                                                                                                                                                                      SGR2/3
                                                                                                                                                                                                                                               SGR2/5
                                                                                                                                                                                                                                                        SGR2/7




                                                                                                                                                                                                                                                                                                                              SGR1/2

                                                                                                                                                                                                                                                                                                                              SGR1/6
                                                                                                                                                                                                                                                                                                                              SGR1/4

                                                                                                                                                                                                                                                                                                                              SGR1/8
                                                                          U1            IRF
                                                                                  3I>                                                                                                                                 T1
                                                            SGB/1
                                                                                                                                                                                                                                                                                                                                                        T2
                                                                               3I>>                                                                                                                                   T3
                                                            SGB/2
                                                                                                                                                                                                                                                                                                                                                        T4
                                                                                                                                                                                                                      T5
                                                                                  Io>
                                                            SGB/3
                                                                                                                                                                                                                                                                                                                                                        T6
                                                                               Io>>                                                                                                                                   T7
                                                            SGB/4
                                                                                                                                                                                                                                                                                                                                                        T8
                                                            SGB/5
                                                                          RC SETTINGS   I/O
                                                            SGB/8                                                                                                                                            SGF/4
              SPAJ 140 C                                                  RESET                                                        T9                                                                              0.1...1s
                                                                                                                                                                                                                                                                                                                                                              U1
Connections




                                                                                                                                                                                                                                                                                                                                                                                                                                                                       4
Uaux                                 Auxiliary voltage
A, B, C, D, E, F                     Output relays
IRF                                  Self-supervision
SGR                                  Switchgroups for the configuration of the output relays
SGB                                  Switchgroup for the configuration of the blocking or control signal
TRIP                                 Trip output relay
SIGNAL 1                             Signal on operation of the overcurrent unit
SIGNAL 2                             Signal on operation of the earth-fault unit
START 1                              Starting or auxiliary trip signal as selected with switchgroup SGR3
START 2                              Start signal of the low-set overcurrent stage I>
U1                                   Overcurrent and earth-fault relay module SPCJ 4D29
U3                                   Input module SPTE 4E1
U2                                   Power supply and output relay module SPTU 240 R1 or SPTU 48 R1
T1…T9                                Start and operation indications
SERIAL PORT                          Serial communication port
SPA-ZC_                              Bus connection module
Rx/Tx                                Receiver bus terminal (Rx) and transmitter bus terminal (Tx) of the bus
                                     connection module




                                                                1   61

                                                                2   62
                                     Serial Port




                                                         68
                                                   SPA




                                                                3   63
                                                         69
                                                         77     4   65
                                                         78
                                                         80     5   66
                                                         81
                                                                6   74

                                                                7   75
                   Made in Finland




                                                                8   70

                                                                9   71

                                                                25 72

                                                                26 10

                                                                27 11




Fig. 3. Terminal arrangement of the overcurrent and earth-fault relay type SPAJ 140 C.




                                                                                                               5
    The energizing currents of the overcurrent unit       selected with switches1...8 of switchgroup SGR2.
    are connected to terminals 1-2, 4-5 and 7-8,          The switch matrixes for routing operate signals
    when the rated current of the CT secondary            to the output relays B and C are identical.
    circuits is In = 5 A. When the rated current of the   Normally output relay B is used for signalling on
    CT secondary circuits is In = 1 A, terminals 1-3,     operation of the overcurrent unit and C for
    4-6 and 7-9 are used. The relay can also be used      signalling on operation of the earth-fault unit.
    in single-phase or two-phase applications sim-        This is also the default setting of the relay on
    ply by leaving one or two energizing inputs           delivery from the factory.
    unoccupied. In single-phase applications the
    same energizing current can be routed through         The start signals of the protection stages of the
    two energizing inputs, which may increase the         relay are routed to output relay D. The signals to
    operating speed of the overcurrent unit, espe-        be routed to output relay D are selected by
    cially at instantaneous operation.                    means of switches 1, 3, 5 and 7 of switchgroup
                                                          SGR1, which is a software switchgroup found in
    The energizing current for the earth-fault unit is    the main menu of the protection relay module.
    connected to terminals 25-26 when the rated           The start signals of the low-set and high-set stage
    current In = 5 A and to terminals 25-27 when          of the overcurrent unit are selected with switches
    the rated current In = 1 A.                           1 and 3, and the start signals of the high-set and
                                                          low-set stage of the earth-fault unit with switches
    The control input 10-11 can be used in three          5 and 7.
    different ways, i) as control input for an external
    blocking signal, ii) as the control input for         The output relay E is a heavy-duty relay as
    unlatching the trip relay, or iii) as the control     output relay A. It can be controlled by the start
    input for the remote control of relay settings.       and operate signals of the protection stages.
    The requested function is selected by means of        Output relay E is also used a trip relay for the
    switches switchgroup SGB in the main menu of          circuit breaker failure protection (CBFP), when
    the protection relay module.                          the CBFP protection is used. In this case the trip
                                                          signal can be used either to control a circuit
    The auxiliary supply voltage of the relay is          breaker upstreams or to control a second trip
    connected to terminals 61-62. At d.c. supply          coil on the main circuit breaker to increase the
    the positive lead is connected to terminal 61.        redundancy of the circuit breaker.
    The level of the voltage to be applied to the
    terminals depends on the type of power supply         Output relay F functions as output relay for the
    and output relay module inserted in the relay.        self-supervision system of the protection relay.
    For further details see the description of the        The F relay is energized under normal operating
    power supply module. The permitted auxiliary          conditions and contact gap 70-72 is closed. If a
    voltage range of the relay is marked on the relay     fault is detected by the self-supervision system,
    front panel.                                          or on loss of auxiliary supply, the output relay
                                                          drops off and the NO contact 71-72 closes.
    Output relay A is a heavy-duty trip relay capable
    of controlling most circuit breakers. The oper-       By means of bus connection modules type
    ate signals of the different protection stages are    SPA -ZC17 and SPA-ZC21 the relay connects
    routed to the trip relay with switches 2,4,6 and      to the fibre-optic SPA bus via a 9-pole, D-type
    8 of switchgroup SGR1. On delivery from the           subminiature connector located at the rear panel
    factory all the protection stages are routed to the   of the relay. The terminals of the fibre-optic
    trip relay. A latching of the output relay A can      cables are connected to the counter terminals Rx
    be selected with switches 6 and 7 of switchgroup      (receiver) and Tx (transmitter) of the bus con-
    SGB.                                                  nection module. The fibre-optic cables are linked
                                                          from one relay to another and to the substation
    Output relays B and C can be used for signalling      level communication unit, for instance type
    on operation of the relay module. The signals to      SRIO 1000M.
    be routed to the output relays B and C are




6
Signal diagram   The figure below schematically illustrates how                    be configured to obtain the required protection
                 the start, trip, control and blocking signals can                 functions.


                                                            SGR3 / 1
                                                            SGR1 / 1
                                                                                                                                               IRF
                  IL1
                                                            SGR3 / 2
                                                            SGR2 / 1
                                                                                                                                      IRF                 F
                                      I>            t>, k   SGR2 / 2
                                                            SGR1 / 2
                  IL2
                                                            SGR3 / 3                                                                           START 1
                                                            SGR1 / 3               SGB / 6
                                                                                                    RESET+
                                                                                                    PROGRAM
                                                                                                                           1          TS1                 E
                  IL3    SGB / 1                            SGF2 / 7
                                                            SGR3 / 4
                                                            SGR2 / 3                    1
                                      I>>           t>>     SGR2 / 4
                                                            SGR1 / 4
                                                                                                                                               START 2
                         SGB / 2
                                                                                                                                      SS1                 D
                  BS                                                                                    SGF1 / 4                      (AR2)
                                                                                   1         0.1...1s

                                                                                                                                               SIGNAL 1
                                                                                                                                      SS2                 C
                                                                                                           SGF2 / 8
                                                                                                                                      (AR3)
                                                            SGR3 / 5
                                                            SGR1 / 5                                                                           SIGNAL 2
                                                            SGR3 / 6                                                                  SS3                 B
                                      Io>      to>, ko      SGR2 / 5
                                                            SGR2 / 6
                   Io                                       SGR1 / 6                                                                  (AR1)


                         SGB / 3                            SGR3 / 7                               RESET+
                                                                                                                                               TRIP
                                                            SGR1 / 7               SGB / 7         PROGRAM
                                                                                                                       1              TS2                 A
                                                            SGR3 / 8
                                                            SGR2 / 7
                                      Io>>          to>>                                1
                                                            SGR2 / 8
                                                            SGR1 / 8
                                                                                                                               TRIP
                                                                                                            RESET
                         SGB / 4

                         SGB / 5      REMOTE SETTINGS
                         SGB / 8
                                      RELAY RESET                  REDUCED BLOCK DIAGRAM                            SPCJ 4D29                 SPTU ___R1




                 Fig. 4. Signal diagram of the combined overcurrent and earth-fault relay type SPAJ 140 C

                 The functions of the blocking and start signals                   the protection relay module. The functions of
                 are selected with the switches of switchgroups                    the different switches are explained in detail in
                 SGF, SGB and SGR. The checksums of the                            the user´s manual of the protection relay mod-
                 switchgroups, are found in the setting menu of                    ule SPCJ 4D29.


Signal           IL1, IL2, IL3     Energizing current of phase L1, L2 and L3
abbreviations    I0                Neutral current (Residual current)
                 BS                Blocking or control signal
                 SS1               Start signal 1
                 SS2               Start signal 2
                 SS3               Start signal 3
                 TS1               Operate signal 1 (Trip signal 1)
                 TS2               Operate signal 2 (Trip signal 2)
                 BS                Blocking signal
                 AR1...3           Auto-reclose start signals (not in use in relay SPAJ 140 C)
                 IRF               Internal relay failure
                 SGF               Switchgroup for functions
                 SGB               Switchgroup for blockings
                 SGR               Switchgroup for relay configuration




                                                                                                                                                              7
Operation                                                                                                                        A) The indicator TRIP is lit when one of the
indicators                                                                                                                3I >
                                                                                                                           I
                                                                                                                                    protection stages operates. When the protec-
                                                                               2
                       f n = 50Hz                   I n = 1A 5A (I )           5           I   L1   I   L2   I   L3   I 0 IRF
                                                                                                                                    tion stage resets, the red indicator remains lit.
                              60Hz                  I n = 1A 5A (I o )


                                        SPAJ 140 C                                                                               B) If the display is dark when one of the protec-
                              80...265V –
                                                                                                                                    tion stages I>, I>>, I0> or I0>> operates, the
                                        ~                                                                              RESET
                              18...80V –                               U aux
                                                                                                    I >/I n
                                                                                                    t > [s]
                                                                                                                       STEP         faulty phase or the neutral circuit is indicated
                                                 SPCJ 4D29
                                                                                                    k
                                                                                                                                    with a yellow LED. If, for instance, the TRIP
                                                                                                    I >> / I n
                          REGISTERS                          OPER.IND.
                                                                                                    t >> [s]
                                                                                                                                    indicator glows red, and the indicators IL1
                          0        0 0      0                0
                                                                                                    I 0 >/ I n
                                                                                                                                    and IL2 at the same time are lit, overcurrent
                         1          /I n                     1   I >START
                         2
                               I
                               I
                                   L1

                                    /I n
                                   L2                        2   I >TRIP
                                                                                                    t 0 > [s ]
                                                                                                    k0
                                                                                                                                    has occurred on phase L1 and L2.
                         3     I L3 / I n                    3      >
                                                                 I > START
                                                                                                    I o >> /I n
                         4     I max (15min) /I n            4      >
                                                                 I > TRIP
                         5     t (I > )[ % ]                 5
                                                             6
                                                                 I o >START                         t o >>[s]                    C) Besides being a code number at data presen-
                         6     t (I > )[ % ]
                                     >                           I o >TRIP                                            PROGRAM

                         7     I o /I n                      7        >
                                                                 I o > START
                                                                                                    SGF
                                                                                                                                    tation, the leftmost red digit in the display
                         8     t (I o > )[ % ]               8        >
                                                                 I o > TRIP
                         9     t (I o > )[ % ]
                                       >                     9   CBFP
                                                                                                    SGB
                                                                                                                                    serves as a visual operation indicator. An
                                                                                                    SGR
                                                                                                                        TRIP
                                                                                                                                    operation indicator is recognized by the fact
                                                                                                                                    that the red digit alone is switched on. The
               0074A




                                                                                   0012A
                        RS 611 006 -                   Ser.No.                                               SPCJ 4D29
                                                                                                                                    following table named OPERATION IND.
                                                                                                                                    on the relay front panel is a key to the
                                                                                                                                    function code numbers used.

              Indication Explanation

                        1                        I> START                          = The low-set stage I> of the overcurrent unit has started
                        2                        I> TRIP                           = The low-set stage I> of the overcurrent unit has operated
                        3                        I>> START                         = The high-set stage I>> of the overcurrent unit has started
                        4                        I>> TRIP                          = The high-set stage I>> of the overcurrent unit has operated
                        5                        I0> START                         = The low-set stage I0> of the earth-fault unit has started
                        6                        I0> TRIP                          = The low-set stage I0> of the earth-fault unit has operated
                        7                        I0>> START                        = The high-set stage I0>> of the earth-fault unit has started
                        8                        I0>> TRIP                         = The high-set stage I0>> of the earth-fault unit has operated
                        9                        CBFP                              = Circuit breaker failure protection has operated

             D) The TRIP indications persist when the pro-                                                                       SGF2/1 = 1 manual reset of I> start indication
                tection stage returns to normal. The indica-                                                                     SGF2/2 = 1 manual reset of I>> start indication
                tor is reset by pushing the RESET/STEP                                                                           SGF2/3 = 1 manual reset of I0> start indication
                push-button.                                                                                                     SGF2/4 = 1 manual reset of I0>> start indication

             Further, the indicators may be reset via the                                                                        On delivery of the relay from the factory the
             external control input 10-11 by applying a                                                                          switches SGF2/1…4 are preset at 0.
             control voltage to the input, provided switch
             SGB/8 is in position 1.                                                                                             E) Shortly after the internal self-supervision
                                                                                                                                    system has detected a permanent relay fault
             The basic protection relay functions are not                                                                           the red IRF indicator is switched on and the
             depending on the state of the operation indica-                                                                        output relay of the self-supervision system
             tors, reset or non-reset. The relay is permanently                                                                     operates. Further, in most fault situations an
             operative.                                                                                                             autodiagnostic fault code is shown in the
                                                                                                                                    display. The fault code is composed of a red
             If a protection stage starts, but not operates,                                                                        figure 1 and a green code number which
             because the energizing quantity goes below the                                                                         indicates fault type. The fault code persists
             set start current before the operate time circuit                                                                      until the STEP/RESET push-button is
             has timed out, the start indicators are normally                                                                       pressed. When a fault code appears on the
             automatically switched off. However, by means                                                                          display, the code number should be recorded
             of the switches SGF2/1…4 the start indications                                                                         for statistical and maintenance purposes.
             may be made persistant which means that they
             are to be manually reset by pushing the RESET/
             STEP push-button. The persistent indications
             are obtained through the following switch set-
             tings.


8
Power supply       To be able to operate the relay needs a secured        panel. The primary side of the power supply
and output relay   auxiliary voltage supply. The power supply             module is protected with a fuse, F1, located on
module             module forms the voltages required by the pro-         the PCB of the module. The fuse size is 1 A
                   tection relay module and the auxiliary relays.         (slow).
                   The withdrawable power supply and output
                   relay module is located behind the system front        The power supply unit is a pulse-width modu-
                   panel, which is fixed by means of four cross-          lated (PWM) dc/dc converter with galvanically
                   slotted screws. The power supply and output            isolated primary and secondary sides. It forms
                   relay module contains the power supply unit, all       the dc secondary voltages required by the pro-
                   output relays, the control circuits of the output      tection relay module; that is +24 V, ±12 V and
                   relays and the electronic circuitry of the external    +8 V. The output voltages ±12 V and +24 V are
                   control inputs.                                        stabilized in the power supply module, while the
                                                                          +5 V logic voltage required by the protection
                   The power supply and output relay module can           relay module is stabilized in the protection relay
                   be withdrawn after removing the system front           module.



                                                                                            +8V      Unstabilized logics
                                     1 A slow                                                        voltage

                                                                                           +12V
                      Uaux
                                                                                                     Operation amplifier
                      80...265 V ac & dc                                                             voltage
                                                                                           -12V
                      18...80 V dc
                                                                                                     Output relay coil
                                                                                           +24V      voltage




                   Fig. 5.Voltage levels of the power supply unit

                   A green LED indicator Uaux on the system front         Insulation test voltage between the primary and
                   panel is lit when the power supply module is in        secondary side and the protective earth
                   operation. The supervision of the voltages sup-                              2 kV, 50 Hz, 1 min
                   plying the electronics is located in the protec-
                   tion relay module. If a secondary voltage differs      Rated power Pn       5W
                   too much from its rated value, a self-supervision
                   alarm will be generated. An alarm is also issued       Voltage ranges of the power supply modules:
                   when the power supply module is withdrawn              - SPTU 240 R1       Uaux = 80...265 V dc/ac
                   from the relay case, or on loss of auxiliary supply.   - SPTU 48 R1        Uaux = 18...80 V dc

                   There are two versions of power supply and
                   output relay modules available. For both types,        The SPTU 240 R1 module can be fed from
                   the secondary sides and the relay configurations       either an ac source or a dc source. SPTU 48 R1
                   are identical, but the input voltage ranges differ.    is designed for dc supply only. The permitted
                                                                          auxiliary voltage range of the relay is marked on
                                                                          the relay system front panel.




                                                                                                                           9
Technical data   Energizing inputs
                 Rated current In                                    1A                      5A
                 Thermal withstand capability
                 - continuously                                      4A                    20 A
                 - for 1 s                                           100 A                 500 A
                 Dynamic current withstand, half-wave value          250 A                 1250 A
                 Input impedance                                     <100 mΩ               <20 mΩ
                 Rated frequency fn, on request                                50 Hz or 60 Hz


                 Output contact ratings
                 Tripping contacts
                 Terminals                                                     65-66, 74-75
                 Rated voltage                                                 250 V dc/ac
                 Continuous carry                                              5A
                 Make and carry for 0.5 s                                      30 A
                 Make and carry for 3.0 s                                      15 A
                 Breaking capacity for dc, when the trip circuit
                 time-constant L/R ≤ 40 ms, at 48/110/220 V dc                 5 A/3 A/1 A
                 Contact material                                              AgCdO2

                 Signalling contacts
                 Terminals                                                     70-71-72, 68-69, 77-78, 80-81
                 Rated voltage                                                 250 V dc/ac
                 Continuous carry                                              5A
                 Make and carry for 0.5 s                                      10 A
                 Make and carry for 3.0 s                                      8A
                 Breaking capacity for dc, when the signal circuit
                 time-constant L/R ≤ 40 ms, at 48/110/220 V dc
                 signal circuit voltage                                        1 A/0.25 A/0.15 A
                 Contact material                                              AgCdO2


                 External control inputs
                 Blocking, remote reset or remote setting input                10-11
                 Control voltage level                                         18...265 V dc or 80...265 V ac
                 Control current of activated input                            2…20 mA


                 Power supply and output relay module
                 Supply and output relay module, type SPTU 240 R1              80...265 V dc/ac
                 Supply and output relay module, type SPTU 48 R1               18...80 V dc
                 Power consumption under quiescent/operating
                 conditions                                                    ~4 W/ ~6 W




10
Overcurrent unit of SPCJ 4D29
Low-set overcurrent stage I> *
Start current **
- at definite time characteristic                                   0.5...5.0 x In
- at inverse time characteristic ***                                0.5…2.5 x In
Time/current characteristic
- definite time characteristic
  - operate time t>                                                 0.05...300 s
- inverse definite minimum time (IDMT)
  characteristic as per IEC 255-4 and BS 142                        Extremely inverse
                                                                    Very inverse
                                                                    Normal inverse
                                                                    Long-time inverse
- special type inverse characteristic                               RI-type inverse
                                                                    RXIDG-type inverse
  - time multiplier k                                               0.05...1.0

High-set overcurrent stage I>> *
Start current                                                       0.5...40 x In and ∞, infinite
Operate time t>>                                                    0.04...300 s


Earth-fault unit of SPCJ 4D29
Low-set earth-fault stage I0> *
Start current                                                       0.1...0.8 x In
Time/current characteristic
- definite time characteristic
  - operate time t0>                                                0.05...300 s
- inverse definite minimum time (IDMT)
  characteristic as per IEC 255-4 and BS 142                        Extremely inverse
                                                                    Very inverse
                                                                    Normal inverse
                                                                    Long-time inverse
- special type inverse characteristic                               RI-type inverse
                                                                    RXIDG-type inverse
  - time multiplier k0                                              0.05...1.0

High-set earth-fault stage I0>> *
Start current                                                       0.1...10.0 x In and ∞, infinite
Operate time t0>>                                                   0.05... 300 s



* Note!                                               ** Note!
The operation of the low-set stage based on           If the set start current exceeds 2.5 x In, the
inverse time characteristic will be blocked by        maximum continuous carry of the energizing
starting of the high-set stage. Then the operate      inputs (4 x In) must be noted.
time of the overcurrent unit is determined by
the set operate time of the high-set stage at heavy   *** CAUTION!
fault currents. In order to obtain a trip signal,     Never use start current settings above 2.5 x In at
the high-set stage must be routed to a trip output    inverse time operation although allowed by the
relay.                                                relay.




                                                                                                      11
     Data transmission
     Transmission mode                                               Fibre optic serial bus
     Data code                                                       ASCII
     Selectable data transfer rates                                  4800 or 9600 Bd
     Fibre optic bus connection modules for
     powering from external power source
     - for plastic core cables                                       SPA-ZC 17 BB
     - for glass fibre cables                                        SPA-ZC 17 MM
     Fibre optic bus connection modules for
     powering from host relay
     - for plastic core cables                                       SPA-ZC 21 BB
     - for glass fibre cables                                        SPA-ZC 21 MM

     Dielectric tests *
     Insulation test voltage acc. to IEC 255-5                       2 kV, 50 Hz, 1 min
     Impulse test voltage acc. to IEC 255-5                          5 kV, 1.2/50 µs, 0.5 J
     Insulation resistance acc. to IEC 255-5                         >100 MΩ at 500 V dc

     Disturbance tests *
     High frequency interference test acc. to IEC 255-22-1,
     class III
     - common mode                                                   2.5 kV, 1 MHz, 400 pls/s
     - differential mode                                             1 kV, 1 MHz, 400 pls/s
     Electrostatic discharge test acc. to IEC 801-2, class IV
     - contact discharge                                             8 kV, 150 pF
     - air discharge                                                 15 kV, 150 pF
     Electromagnetic field test acc. to IEC 801-3, class III         10 V/m, 150 kHz…1000 MHz
     Fast transient test acc. to IEC 801-4, class III/IV
     - common mode                                                   4 kV
     - differential mode                                             2 kV
     Spike test, class III (KEMA)                                    1 kV, 0.15/50 µs
     Magnetic field test acc. to IEC 521                             400 A/m

     Power supply tests
     Power supply variation
     Variation voltage                                               68…265 V
     Interruption 80 V - 50%                                         0…200 ms
     Interruption 80 V - 100%                                        0…30 ms
     Interruption 255 V - 100%                                       0…160 ms

     Mechanical tests
     Seismic tests acc. to ANSI/IEEE C37.98-1987
     - operating basis earth-quake tests (OBE)                       0.5…5.25 g
     - safe shut-down earth-quake tests (SSE)                        0.5…7.5 g
     Vibration test                                                  2…13.2 Hz, ±1.0 mm
                                                                     13.2…100 Hz, ±0.7 g
     Shock/bump test acc. to IEC-21-2                                20 g, 1000 bumps/direction

     Environmental conditions
     Corrosion test                                                      Battelle-test
     Specified ambient service temperature range                         -10...+55°C
     Long term damp heat withstand according to IEC 68-2-3               <95% at 40°C for 56 d
     Transport and storage temperature range                             -40...+70°C
     Protection by enclosure according to IEC 529,
     when the relay is panel mounted                                     IP 54
     Mass of the relay including flush mounting relay case               ~3.5 kg

     * The dielectric and disturbance tests do not apply to the serial port, which is used for the bus
       connection module only.
12
Maintenance   When the protection relay is operating under         If the relay fails in operation or if the operating
and repair    the conditions specified in the section "Techni-     values remarkably differ from those of the relay
              cal data", the relay is practically maintenance-     specifications, the relay should be given a proper
              free. The relay modules include no parts or          overhaul. Minor measures can be taken by per-
              components subject to an abnormal physical or        sonnel from the instrument work-shop of the
              electrical wear under normal operating condi-        customer’s company, e.g. replacement of auxil-
              tions.                                               iary relay modules. All major measures involv-
                                                                   ing overhaul of the electronics are to be taken by
              If the environmental conditions at the relay         the manufacturer. Please contact the manufac-
              operating site differ from those specified, as to    turer or his nearest representative for further
              temperature, humidity, or if the atmosphere          information about checking, overhaul and
              around the relay contains chemically active gases    recalibration of the relay.
              or dust, the relay ought to be visually inspected
              in association with the relay secondary test or      Note!
              whenever the relay modules are withdrawn from        Numerical protection relays contain electronic
              the case. At the visual inspection the following     circuits which are liable to serious damage due to
              things should be noted:                              electrostatic discharge. Before removing a mod-
                                                                   ule containing electronic circuits, ensure that
              - Signs of mechanical damage on relay modules,       you are at the same electrostatic potential as the
                contacts and relay case                            equipment, for instance, by touching the relay
              - Accumulation of dust inside the relay cover or     case.
                case; remove by blowing air carefully
              - Rust spots or signs of erugo on terminals, case    Note!
                or inside the relay                                Static protection relays are measuring instru-
                                                                   ments and should be handled with care and
              On request, the relay can be given a special         protected against moisture and mechanical stress,
              treatment for the protection of the printed cir-     especially during transport.
              cuit boards against stress on materials, caused by
              abnormal environmental conditions.


Spare parts   Three-phase overcurrent and earth-fault module          SPCJ 4D29
              Power supply and output relay module
              Uaux = 80...265 V ac/dc                                 SPTU 240 R1
              Uaux = 18...80 V dc                                     SPTU 48 R1
              Input module                                            SPTE 4E1
              Bus connection module                                   SPA-ZC 17__ or SPA-ZC 21__




                                                                                                                   13
Dimensions for      The relay is housed in a normally flush-mounted        panel surface when the relay is panel mounted.
mounting            case. The relay can also be arranged for semi-         The relay case is complete with a hinged gasketed,
                    flush mounting with the use of a 40 mm, 80 mm          clear, UV-stabilized polycarbonate cover with a
                    or 120 mm raising frame, which reduces the             sealable fastening screw. The degree of protec-
                    depth behind the panel by the same dimension.          tion by enclosure of the cover is also IP 54.
                    The type designations of the raising frames are
                    SPA-ZX 111 for the 40 mm frame, SPA-ZX 112             A terminal strip and two multipole connectors
                    for the 80 mm frame and SPA-ZX 113 for the             are mounted on the back of the relay case to
                    120 mm frame. A surface mounting case SPA-             facilitate all input and output connections. To
                    ZX 110 is also available.                              each heavy duty terminal, i.e. measuring input,
                                                                           power supply or trip output, one 6 mm2, one
                    The relay case is made of profile aluminium and        4 mm2 or one or two 2.5 mm2 wires can be
                    finished in beige.                                     connected. No terminal lugs are needed. The
                                                                           signalling outputs are available on a six pole
                    A cast aluminium alloy mounting frame with a           detachable connector and the serial bus connec-
                    rubber gasket provides a degree of protection by       tion is using a 9-pin D-type connnector.
                    enclosure to IP 54 between the relay case and the


                                                                                        250
                                                142
                                                                                        216                 34
                                                                          30            186



                                                                  136
                                 162




                                              129 ±1                                    a               b
                                  139 ±1




                                           Panel cut-out




                                                                        Raising frame          a       b
                                                                        SPA-ZX 111            176      74
                                                                        SPA-ZX 112            136     114
                                                                        SPA-ZX 113             96     154




Order information                                                Example
                    1. Quantity and type designation             15 pcs relay type SPAJ 140 C
                    2. Rated frequency                           fn = 50 Hz
                    3. Auxiliary voltage                         Uaux = 110 V dc
                    4. Accessories                               15 pcs bus connection modules SPA-ZC17 MM
                                                                 2 pcs fibre optical cables SPA-ZF MM 100
                                                                 14 pcs fibre optical cables SPA-ZF MM 5
                    5. Special requirements                      —


14
General characteristics of
D-type relay modules
User´s manual and Technical description




                                                                       3I >   Relay symbol
   Fastening screw                                                      I

                                        I        I        I        I o IRF
   Indicators for measured                  L1       L2       L3              Self-supervision alarm indicator
   quantities                                                                 (Internal Relay Fault)

                                                                              Display, 1 + 3 digits

                                                                    RESET
                                                 I >/I n            STEP

                                                 t > [s]
                                                 k                            Reset / Step push-button
                                                 I >> / I n

                                                 t >> [s]
   Indicators for setting
   parameters                                    I o >/ I n
                                                 t o > [s]
                                                 ko

                                                 I o >> /I n

                                                 t o >>[s]
                                                                   PROGRAM
                                                 SGF
                                                                              Programming push-button
   Indicators for switchgroups
                                                 SGB
   SGF, SGB and SGR
                                                 SGR

                                                                     TRIP     Trip indicator
                                 879B




                                                          SPCJ 4D29           Module type designation
   Fastening screw
1MRS 750066-MUM EN
                                                                                           General characteristics
Issued 95-04-12
Version A (replaces 34 SPC 3 EN1)
Checked JH
                                                                                           of D type relay modules
Approved TK


Data subject to change without notice



Contents                     Front panel lay-out ......................................................................................................... 1
                             Control push buttons ..................................................................................................... 3
                             Display ........................................................................................................................... 3
                                Display main menu ................................................................................................... 3
                                Display submenus ..................................................................................................... 3
                             Selector switchgroups SGF, SGB, SGR .......................................................................... 4
                             Settings ........................................................................................................................... 4
                                Setting mode ............................................................................................................. 4
                                Example 1: Setting of relay operation values .............................................................. 7
                                Example 2: Setting of relay switchgroups................................................................... 9
                             Recorded information ................................................................................................... 11
                             Trip test function ......................................................................................................... 12
                                Example 3: Forced activation of outputs ................................................................. 13
                             Operation indicators ..................................................................................................... 15
                             Fault codes.................................................................................................................... 15




2
Control             The front panel of the relay module contains          certain position in the main menu to the corre-
push-buttons        two push buttons. The RESET / STEP push               sponding submenu, for entering the setting
                    button is used for resetting operation indicators     mode of a certain parameter and together with
                    and for stepping forward or backward in the           the STEP push button for storing the set values.
                    display main menu or submenus. The PRO-               The different operations are described in the
                    GRAM push button is used for moving from a            subsequent paragraphs in this manual.


Display             The measured and set values and the recorded          When the auxiliary voltage of a protection relay
                    data are shown on the display of the protection       module is switched on the module initially tests
                    relay module. The display consists of four digits.    the display by stepping through all the segments
                    The three green digits to the right show the          of the display for about 15 seconds. At first the
                    measured, set or recorded value and the leftmost      corresponding segments of all digits are lit one
                    red digit shows the code number of the register.      by one clockwise, including the decimal points.
                    The measured or set value displayed is indicated      Then the center segment of each digit is lit one
                    by the adjacent yellow LED indicator on the           by one. The complete sequence is carried out
                    front panel. When a recorded fault value is being     twice. When the test is finished the display turns
                    displayed the red digit shows the number of the       dark. The testing can be interrupted by pressing
                    corresponding register. When the display func-        the STEP push button. The protection func-
                    tions as an operation indicator the red digit         tions of the relay module are alerted throughout
                    alone is shown.                                       the testing.


Display main menu   Any data required during normal operation are         From a dark display only forward movement is
                    accessible in the main menu i.e. present meas-        possible. When the STEP push button is pushed
                    ured values, present setting values and recorded      constantly, the display continuously moves for-
                    parameter values.                                     ward stopping for a while in the dark position.

                    The data to be shown in the main menu are             Unless the display is switched off by stepping to
                    sequentially called up for display by means of        the dark point, it remains lit for about 5 minutes
                    the STEP push button. When the STEP push              from the moment the STEP push button was
                    button is pressed for about one second, the           last pushed. After the 5 minutes' time-out the
                    display moves forward in the display sequence.        dispaly is switched off.
                    When the push button is pressed for about 0.5
                    seconds, the display moves backward in the
                    display sequence.


Display submenus    Less important values and values not very often       the display moves forward when the STEP push
                    set are displayed in the submenus. The number         button is pushed for one second and backward
                    of submenus varies with different relay module        when it is pushed for 0.5 seconds. The main
                    types. The submenus are presented in the de-          menu has been re-entered when the red display
                    scription of the concerned protection relay           turns dark.
                    module.
                                                                          When a submenu is entered from a main menu
                    A submenu is entered from the main menu by            of a measured or set value indicated by a LED
                    pressing the PROGRAM push button for about            indicator, the indicator remains lit and the ad-
                    one second. When the push button is released,         dress window of the display starts flashing. A
                    the red digit of the display starts flashing, indi-   submenu position is indicated by a flashing red
                    cating that a submenu has been entered. Going         address number alone on the dispaly without
                    from one submenu to another or back to the            any lit set value LED indicator on the front
                    main menu follows the same principle as when          panel.
                    moving from the main menu display to another;




                                                                                                                          3
Selector switch-   Part of the settings and the selections of the
groups SGF, SGB    operation characteristic of the relay modules in       Switch No        Pos.          Weigth       Value
and SGR            various applications are made with the selector
                   switchgroups SG_ . The switchgroups are soft-               1             1       x      1     =     1
                   ware based and thus not physically to be found              2             0       x      2     =     0
                   in the hardware of the relay module. The indi-              3             1       x      4     =     4
                   cator of the switchgroup is lit when the checksum           4             1       x      8     =     8
                   of the switchgroup is shown on the display.                 5             1       x     16     =    16
                   Starting from the displayed checksum and by                 6             0       x     32     =     0
                   entering the setting mode, the switches can be              7             1       x     64     =    64
                   set one by one as if they were real physical                8             0       x    128     =     0
                   switches. At the end of the setting procedure, a
                   checksum for the whole switchgroup is shown.                          Checksum           ∑     =    93
                   The checksum can be used for verifying that the
                   switches have been properly set. Fig. 2 shows an
                   example of a manual checksum calculation.             Fig. 2. Example of calculating the checksum of
                                                                         a selector switchgroup SG_.
                   When the checksum calculated according to the
                   example equals the checksum indicated on the          The functions of the selector switches of the
                   display of the relay module, the switches in the      different protection relay modules are described
                   concerned switchgroup are properly set.               in detail in the manuals of the different relay
                                                                         modules.


Settings           Most of the start values and operate times are set    and the second settings can be done in three
                   by means of the display and the push buttons on       different ways:
                   the front panel of the relay modules. Each
                   setting has its related indicator which is lit when   1) By command V150 over the serial communi-
                   the concerned setting value is shown on the              cation bus
                   display.                                              2) By an external control signal BS1, BS2 or
                                                                            RRES (BS3)
                   In addition to the main stack of setting values       3) Via the push-buttons of the relay module, see
                   most D type relay modules allow a second stack           submenu 4 of register A.
                   of settings. Switching between the main settings


Setting mode       Generally, when a large number of settings is to      cursor is moved on from digit to digit by press-
                   be altered, e.g. during commissioning of relay        ing the PROGRAM push button and in each
                   systems, it is recommended that the relay set-        stop the setting is performed with the STEP
                   tings are entered with the keyboard of a              push button. After the parameter values have
                   personal computer provided with the necessary         been set, the decimal point is put in place. At the
                   software. When no computer nor software is            end the position with the whole display flashing
                   available or when only a few setting values need      is reached again and the data is ready to be
                   to be altered the procedure described below is        stored.
                   used.
                                                                         A set value is recorded in the memory by press-
                   The registers of the main menu and the submenus       ing the push buttons STEP and PROGRAM
                   contain all parameters that can be set. The           simultaneously. Until the new value has been
                   settings are made in the so called setting mode,      recorded a return from the setting mode will
                   which is accessible from the main menu or a           have no effect on the setting and the former
                   submenu by pressing the PROGRAM push                  value will still be valid. Furthermore any attempt
                   button, until the whole display starts flashing.      to make a setting outside the permitted limits for a
                   This position indicates the value of the param-       particular parameter will cause the new value to be
                   eter before it has been altered. By pressing the      disqualified and the former value will be main-
                   PROGRAM push button the programming se-               tained. Return from the setting mode to the
                   quence moves forward one step. First the              main menu or a submenu is possible by pressing
                   rightmost digit starts flashing while the rest of     the PROGRAM push button until the green
                   the display is steady. The flashing digit is set by   digits on the display stop flashing.
                   means of the STEP push button. The flashing



4
NOTE! During any local man-machine com-                                     any doubt about the settings of the module to be
munication over the push buttons and the dis-                               inserted, the setting values should be read using
play on the front panel a five minute time-out                              a spare relay unit or with the relay trip circuits
function is active. Thus, if no push button has                             disconnected. If this cannot be done the relay
been pressed during the last five minutes, the                              can be sett into a non-tripping mode by pressing
relay returns to its normal state automatically.                            the PROGRAM push button and powering up
This means that the display turns dark, the relay                           the relay module simultaneously. The display
escapes from a display mode, a programming                                  will show three dashes "- - -" to indicate the non-
routine or any routine going on, when the relay                             tripping mode. The serial communication is
is left untouched. This is a convenient way out                             operative and all main and submenues are acces-
of any situation when the user does not know                                sible. In the non-tripping mode unnecessary
what to do.                                                                 trippings are avoided and the settings can be
                                                                            checked. The normal protection relay mode is
Before a relay module is inserted into the relay                            entered automatically after a timeout of five
case, one must assure that the module has been                              minutes or ten seconds after the dark display
given the correct settings. If there however is                             position of the main menu has been entered.



         MAIN MENU                                         SUBMENU                              SETTING MODE
         REV. STEP 0,5 s

                                       STEP 0,5 s   PROGRAM 1 s            PROGRAM 5 s   PROGRAM 5 s
        FWD.STEP 1 s


          Normal status, display off


          First measuring value


                                                              REV. STEP 0,5 s
                                                                                                                INCREASE VALUE
                                                                                                                STEP 0,5 s
          Last measuring value
                                                              FWD.STEP 1 s

                                                          1    Main setting                     1   0   0   0
          Actual setting value 1                               value for stage 1

                                                               Second setting
          Actual setting value 2                          2    value for stage 1               MOVE FIGURE OR DECIMAL POINT
                                                                                               CURSOR WITH BUTTON PROGRAM 1 s



                                                                                               STORE NEW SETTING BY PRESSING
          Memorized values etc.                                                                STEP AND PROGRAM SIMULTANEOUSLY
                                                                                               WHEN THE VALUE IS READY AND THE
                                                                                               WHOLE DISPLAY IS BLINKING


  NOTE! IN MOST MENU CHARTS THE SUBMENUS HAVE BEEN DRAWN IN A HORIZONTAL DIRECTION IN ORDER TO GET
        ALL MAIN AND SUBMENU POSITIONS SHOWN IN THE SAME CHART.




Fig.3. Basic principles of entering the main menus and submenus of a relay module.




                                                                                                                                 5
                MAIN MENU                                        SUBMENUS

                                              STEP 0.5 s   PROGRAM 1 s



                    Normal status, display off


                    Current on phase L1


                    Current on phase L2


                    Current on phase L3

                                                                   REV. STEP 0.5 s                  FWD. STEP 1 s
                    Neutral current Io                                                  SUBMENUS

                                                                  Main setting                 2   Second setting
                    Actual start value I>                    1
                                                                  value for I>                     value for I>

                    Actual operate time t> or                1    Main setting                 2   Second setting
                    multiplier k for stage I>                     value for t> or k                value for t> or k

                    Actual start value I>>                   1    Main setting                 2   Second setting
                                                                  value for I>>                    value for I>>

                    Actual operate time t>>                  1    Main setting                 2   Second setting
                    of stage I>>                                  value for t>>                    value for t>>
       R
       E
       V.
                    Actual start value Io>                   1    Main setting                 2   Second setting
       S
                                                                  value for Io>                    value for Io>
       T
       E
       P            Actual operate time to>                  1    Main setting                 2   Second setting
                    or multiplier ko                              value for to> or ko              value for to> or ko
       .5
       s

            M       Actual start value Io>>                  1    Main setting                 2   Second setting
            A                                                     value for Io>>                   value for Io>>
            I
            N       Actual operate time to>>                 1    Main setting                 2   Second setting
                                                                  value for to>>                   value for to>>
            M
            E
                    Actual setting of functional             1 Main setting of                 2   Main setting of
                    switchgroup SGF1                           SGF1 checksum                       SGF2 checksum
            N
            U
                    Actual setting of blocking               1    Main setting of              2   Second setting of
       F
                    switchgroup SGB                               SGB checksum                     SGB checksum
       W
       D.
                    Actual setting of relay                  1    Main setting of              2   Main setting of
       S            switchgroup SGR1                              SGR1 checksum                    SGR2 checksum
       T
       E
       P
                1
                    Latest memorized, event (n)              1 Event (n-1)                     2 Event (n-2)
                    value of phase L1                          value of phase L1                 value of phase L1
       1
       s

                2   Latest memorized, event (n)              1 Event (n-1)                     2   Event (n-2)
                    value of phase L2                          value of phase L2                   value of phase L2

                    Latest memorized, event (n)              1 Event (n-1)                     2   Event (n-2)
                3
                    value of phase L3                          value of phase L3                   value of phase L3

                    Maximum demand current                   1 Highest maximum
                4   value for 15 minutes                       demand value found




    Fig. 4.Example of part of the main and submenus for the settings of the overcurrent and earth-fault
    relay module SPCJ 4D29. The settings currently in use are in the main manu and they are displayed
    by pressing the STEP push button. The main menu also includes the measured current values, the
    registers 1...9, 0 and A. The main and second setting values are located in the submenus and are
    called up on the display with the PROGRAM push button.




6
Example 1   Operation in the setting mode. Manual setting       for the main setting is 0.80 x In and for the
            of the main setting of the start current value I>   second setting 1.00 x In. The desired main start
            of an overcurrent relay module. The initial value   value is 1.05 x In.

            a)                                                      RESET
                                                                    STEP
            Press push button STEP repeatedly until the                     5x1s
            LED close to the I> symbol is lit and the current
            start value appears on the display.
                                                                                              0. 8 0
            b)
            Enter the submenu to get the main setting value       PROGRAM

            by pressing the PROGRAM push button more                        1s
            than one second and then releasing it. The red
            display digit now shows a flashing number 1,                               1 0. 8 0
            indicating the first submenu position and the
            green digits show the set value.


            c)                                                    PROGRAM

            Enter the setting mode by pressing the PRO-                     5s
            GRAM push button for five seconds until the                                1 0. 8 0
            display starts flashing.



            d)
                                                                  PROGRAM
            Press the PROGRAM push button once again
            for one second to get the rightmost digit flash-
            ing.
                                                                            1s         1 0. 8 0

            e)                                                      RESET
                                                                    STEP
            Now the flashing digit can be altered. Use the
                                                                            5x
            STEP push button to set the digit to the desired
            value.
                                                                                       1 0. 8 5

            f)                                                    PROGRAM

            Press the PROGRAM push button to make the                       1s
            middle one of the green digits flash.
                                                                                       1 0. 8 5
            g)                                                      RESET
                                                                    STEP
            Set the middle digit with of the STEP push                      2x
            button.
                                                                                       1 0. 0 5
            h)                                                    PROGRAM

            Press the PROGRAM push button to make the                       1s
            leftmost green digit flash.

                                                                                       1 0. 0 5

                                                                                                              7
    i)                                                       RESET
                                                             STEP
    Set the digit with the STEP push button.                           0x
                                                                                    1 1. 0 5

    j)                                                      PROGRAM

    Press the PROGRAM push button to make the                          1s
    decimal point flash.
                                                                                    1 1. 0 5

    k)                                                       RESET
                                                             STEP
    If needed, move the decimal point with the                         0x
    STEP push button.
                                                                                    1 1. 0 5
    l)
                                                            PROGRAM
    Press the PROGRAM push button to make the
    whole display flash. In this position, corre-
                                                                       1s
    sponding to position c) above, one can see the
    new value before it is recorded. If the value
    needs changing, use the PROGRAM push but-
                                                                                    1 1. 0 5
    ton to alter the value.

                                                                     RESET
                                                                     STEP
    m)
    When the new value has been corrected, record
    it in the memory of the relay module by pressing
    the PROGRAM and STEP push buttons simul-
                                                                                    1 - - -
                                                                 PROGRAM
    taneously. At the moment the information en-
    ters the memory, the green dashes flash once in
    the display, i.e. 1 - - -.



    n)
    Recording of the new value automatically initi-         PROGRAM

    ates a return from the setting mode to the                         5s           1 1. 0 5
    normal submenu. Without recording one can
    leave the setting mode any time by pressing the
    PROGRAM push button for about five sec-
    onds, until the green display digits stop flashing.

    o)
    If the second setting is to be altered, enter            RESET
                                                             STEP
    submenu position 2 of the setting I> by pressing
    the STEP push button for approx. one second.
                                                                      1s            2 1. 0 0
    The flashing position indicator 1 will then be
    replaced by a flashing number 2 which indicates
    that the setting shown on the display is the
    second setting for I>.

    Enter the setting mode as in step c) and proceed      until the first digit is switched off. The LED still
    in the same way. After recording of the re-           shows that one is in the I> position and the
    quested values return to the main menu is             display shows the new setting value currently in
    obtained by pressing the STEP push button             use by the relay module.


8
Example 2   Operation in the setting mode. Manual setting          SGF1/1and SGF1/3 are to be set in position 1.
            of the main setting of the checksum for the            This means that a checksum of 005 should be
            switchgroup SGF1 of a relay module. The initial        the final result.
            value for the checksum is 000 and the switches


            a)                                                        RESET
                                                                      STEP
            Press push button STEP until the LED close to                     nx1s
            the SGF symbol is lit and the checksum appears
            on the display.
                                                                                              0 0 0
            b)                                                       PROGRAM
            Enter the submenu to get the main checksum of                      1s
            SGF1 by pressing the PROGRAM push button
            for more than one second and then releasing it.
            The red display now shows a flashing number 1
                                                                                        1 0 0 0
            indicating the first submenu position and the
            green digits show the checksum.

            c)
            Enter the setting mode by pressing the PRO-              PROGRAM

            GRAM push button for five seconds until the                        5s
            display starts flashing.                                                    1 0 0 0
            d)
            Press the PROGRAM push button once again                 PROGRAM

            to get the first switch position. The first digit of               1x
            the display now shows the switch number. The
            position of the switch is shown by the rightmost
            digit.
                                                                                        1 1                0
            e)
            The switch position can now be toggled be-                RESET
                                                                      STEP
            tween 1 and 0 by means of the STEP push
            button and it is left in the requested position 1.                 1x       1 1                1
            f)
            When switch number 1 is in the requested
            position, switch number 2 is called up by press-         PROGRAM

            ing the PROGRAM push button for one sec-
            ond. As in step e), the switch position can be
                                                                               1s       1 2                0
            altered by using the STEP push button. As the
            desired setting for SGF1/2 is 0 the switch is left
            in the 0 position.

            g)
            Switch SGF1/3 is called up as in step f) by
            pressing the PROGRAM push button for about
                                                                     PROGRAM
                                                                               1s       1 3                0
            one second.




                                                                                                               9
     h)                                                    RESET
                                                           STEP
     The switch position is altered to the desired                  1x
     position 1 by pressing the STEP push button                           1 3   1
     once.




     i)                                                   PROGRAM
     Using the same procedure the switches SGF 1/                   5x1s
     4...8 are called up and, according to the exam-
     ple, left in position 0.




     j)
     In the final setting mode position, correspond-
     ing to step c), the checksum based on the set                         1 0 0 5
     switch positions is shown.


     k)
     If the correct checksum has been obtained, it is          RESET
                                                               STEP
     recorded in the memory by pressing the push
     buttons PROGRAM and STEP simultaneously.
     At the moment the information enters the                              1 - - -
     memory, the green dashes flash in the display,
                                                              PROGRAM
     i.e.1 - - -. If the checksum is incorrect, the
     setting of the separate switches is repeated using
     the PROGRAM and STEP push buttons start-
     ing from step d).


     l)
     Recording the new value automatically initiates      PROGRAM
     a return from the setting mode to the normal                   5s
     menu. Without recording one can leave the
     setting mode any time by pressing the PRO-
                                                                           1 0 0 5
     GRAM push button for about five seconds,
     until the green display digits stop flashing.


     m)
     After recording the desired values return to the
     main menu is obtained by pressing the STEP            RESET
                                                           STEP
                                                                    nx1s
     push button until the first digit is turned off.
     The LED indicator SGF still shows that one is                           0 0 5
     in the SGF position and that the display shows
     the new checksum for SGF1 currently in use by
     the relay module.




10
Recorded      The parameter values measured at the moment            Submenu 2 of register A contains a bus commu-
information   when a fault occurs or at the trip instant are         nication monitor for the SPAbus. If the protec-
              recorded in the registers. The recorded data,          tion relay, which contains the relay module, is
              except for some parameters, are set to zero by         linked to a system including a contol data
              pressing the push buttons STEP and PRO-                communicatoe, for instance SRIO 1000M and
              GRAM simultaneously. The data in normal                the data communication system is operating,
              registers are erased if the auxiliary voltage supply   the counter reading of the monitor will be zero.
              to the relay is interrupted, only the set values and   Otherwise the digits 1...255 are continuously
              certain other essential parameters are maintained      scrolling in the monitor.
              in non-volatile registers during a voltage failure.
                                                                     Submenu 3 contains the password required for
              The number of registers varies with different          changing the remote settings. The address code,
              relay module types. The functions of the regis-        the data transfer rate of the serial communica-
              ters are illustrated in the descriptions of the        tion and the password can be set manually or via
              different relay modules. Additionally, the sys-        the serial communication bus. For manual set-
              tem front panel of the relay contains a simplified     ting see example 1.
              list of the data recorded by the various relay
              modules of the protection relay.                       The default value is 001 for the address code, 9.6
                                                                     kilobaud for the data transfer rate and 001 for
              All D type relay modules are provided with two         the password.
              general registers: register 0 and register A.
                                                                     In order to secure the setting values, all settings
              Register 0 contains, in coded form, the informa-       are recorded in two separate memory banks
              tion about e.g. external blocking signals, status      within the non-volatile memory. Each bank is
              information and other signals. The codes are           complete with its own checksum test to verify
              explained in the manuals of the different relay        the condition of the memory contents. If, for
              modules.                                               some reason, the contents of one bank is
                                                                     disturbed, all settings are taken from the other
              Register A contains the address code of the relay      bank and the contents from here is transferred to
              modul which is reqiured by the serial communi-         the faulty memory region, all while the relay is
              cation system.                                         in full operation condition. If both memory
                                                                     banks are simultaneously damaged the relay will
              Submenu 1 of register A contains the data trans-       be be set out of operation, and an alarm signal
              fer rate value, expressed in kilobaud, of the serial   will be given over the serial port and the IRF
              communication.                                         output relay




                                                                                                                     11
Trip test function   Register 0 also provides access to a trip test                                                        The selected starting or tripping is activated by
                     function, which allows the output signals of the                                                      simultaneous pressing of the push buttons
                     relay module to be activated one by one. If the                                                       STEP and PROGRAM. The signal remains
                     auxiliary relay module of the protection assem-                                                       activated as long as the two push butttons are
                     bly is in place, the auxiliary relays then will                                                       pressed. The effect on the output relays depends
                     operate one by one during the testing.                                                                on the configuration of the output relay matrix
                                                                                                                           switches.
                     When pressing the PROGRAM push button
                     for about five seconds, the green digits to the                                                       The self-supervision output is activated by press-
                     right start flashing indicating that the relay                                                        ing the STEP push button 1 second when no
                     module is in the test position. The indicators of                                                     setting indicator is flashing. The IRF output is
                     the settings indicate by flashing which output                                                        activated in about 1 second after pressing of the
                     signal can be activated. The required output                                                          STEP push button.
                     function is selected by pressing the PROGRAM
                     push button for about one second.
                                                                                                                           The signals are selected in the order illustrated in
                     The indicators of the setting quantities refer to                                                     Fig. 4.
                     the following output signals:

                     Setting I>                       Starting of stage I>
                     Setting t>                       Tripping of stage I>
                     Setting I>>                      Starting of stage I>>
                     Setting t>>                      Tripping of stage I>>
                     etc.
                     No indication                    Self-supervision IRF



                                               IRF                                    I> TRIP             I» START             I» TRIP             Io> START             Io> TRIP             Io»START             Io» TRIP
                                                                I> START
                        REGISTER 0
                                     PROGRAM          PROGRAM              PROGRAM              PROGRAM              PROGRAM             PROGRAM                                    PROGRAM              PROGRAM
                                                                    I>                                                                                         PROGRAM                                                        PROGRAM
                                        5s               1s                   1s         t>        1s                   1s                  1s                                         1s                   1s
                                                                                                             I»                                                   1s                                                             1s
                                                                                                                                  t»
                                                                                                                                                       Io>                  to>
                                                                                                                                                                                                  Io»
                                                                                                                                                                                                                      to»




                                               STEP              STEP &               STEP &               STEP &               STEP &              STEP &                STEP &               STEP &               STEP &
                                                                PROGRAM              PROGRAM              PROGRAM              PROGRAM             PROGRAM               PROGRAM              PROGRAM              PROGRAM




                     Fig. 5.Sequence order for the selection of output signals in the Trip test mode

                     If, for instance, the indicator of the setting t> is                                                  Note!
                     flashing, and the push buttons STEP and PRO-                                                          The effect on the output relays then depends on
                     GRAM are being pressed, the trip signal from                                                          the configuration of the output relay matrix
                     the low-set overcurrent stage is activated. Re-                                                       switchgroups SGR 1...3.
                     turn to the main menu is possible at any stage of
                     the trip test sequence scheme, by pressing the
                     PROGRAM push button for about five sec-
                     onds.




12
Example 3   Trip test function. Forced activation of the
            outputs.

            a)
            Step forward on the display to register 0.
                                    RESET
                                    STEP

                                             nx1s
                                                                                                                0 0 0 0
            b)
            Press the PROGRAM push button for about                                                      3I >
                                                                                                          I
            five seconds until the three green digits to the              I   L1   I   L2 I     L3   I o IRF

            right.

                                   PROGRAM
                                                                                   I >/I n
                                                                                                      RESET
                                                                                                                0 0 0 0
                                             5s                                    t > [s]
                                                                                   k
                                                                                                      STEP




                                                                                   I >> / I n

                                                                                   t >> [s]

                                                                                   I o >/ I n
                                                                                   t o > [s]
                                                                                   ko

                                                                                   I o >> /I n

                                                                                   t o >>[s]
                                                                                                     PROGRAM
                                                                                   SGF

                                                                                   SGB


            c)                                                                     SGR

                                                                                                       TRIP
            Hold down the STEP push button. After one              879B

                                                                                            SPCJ 4D29
            second the red IRF indicator is lit and the IRF
            output is activated. When the step push button
            is released the IRF indicator is switched off and
            the IRF output resets.


            d)
            Press the PROGRAM push button for one                                                        3I >
                                                                                                          I

            second and the indicator of the topmost setting               I   L1   I   L2   I   L3   I o IRF

            start flashing.

            e)
                                                                                   I >/I n
                                                                                                      RESET
                                                                                                                0 0 0 0
            If a start of the first stage is required, now press                   t > [s]
                                                                                                      STEP


                                                                                   k
            the push-buttons PROGRAM and STEP simul-                               I >> / I n

            taneously. The stage output will be activated and                      t >> [s]

            the output relays will operate according to the                        I o >/ I n
                                                                                   t o > [s]
            actual programming of the relay output                                 ko

                                                                                   I o >> /I n
            switchgroups SGR.                                                      t o >>[s]
                                                                                                     PROGRAM
                                                                                   SGF

                                                                                   SGB
                                    RESET
                                    STEP
                                                                                   SGR

                                                                                                       TRIP
                                                                   879B




                                                                                            SPCJ 4D29




                                   PROGRAM




                                                                                                                      13
     f)
     To proceed to the next position press the PRO-                                            3I >
                                                                                                I
     GRAM push button for about 1 second until                  I   L1   I   L2 I     L3   I o IRF

     the indicator of the second setting starts flash-
     ing.                                                                                             0 0 0 0
                                                                                            RESET
                                                                         I >/I n            STEP
                            PROGRAM
                                                                         t > [s]
                                      1s                                 k

                                                                         I >> / I n

                                                                         t >> [s]

                                                                         I o >/ I n
                                                                         t o > [s]
                                                                         ko

                                                                         I o >> /I n

                                                                         t o >>[s]
                                                                                           PROGRAM
                                                                         SGF

                                                                         SGB

                                                                         SGR

                                                                                             TRIP




                                                         879B
                                                                                  SPCJ 4D29




     g)
     Press the push buttons PROGRAM and STEP                                                   3I >
                                                                                                I

     simultaneously to activate tripping of stage 1             I   L1   I   L2   I   L3   I o IRF

     (e.g. the I> stage of the overcurrent module
     SPCJ 4D29). The output relays will operate
     according to the actual programming of the                                             RESET
                                                                                                      0 0 0 0
                                                                         I >/I n
     relay switchgroups SGR. If the main trip relay                      t > [s]
                                                                                            STEP


                                                                         k
     is operated the trip indicator of the measuring                     I >> / I n

     module is lit.                                                      t >> [s]

                                                                         I o >/ I n
                             RESET                                       t o > [s]
                             STEP                                        ko

                                                                         I o >> /I n

                                                                         t o >>[s]
                                                                                           PROGRAM
                                                                         SGF

                                                                         SGB

                                                                         SGR

                                                                                             TRIP
                            PROGRAM
                                                         879B




                                                                                  SPCJ 4D29




     h)
     The starting and tripping of the remaining          It is possible to leave the trip test mode at any
     stages are activated in the same way as the first   step of the sequence scheme by pressing the
     stage above. The indicator of the corresponding     PROGRAM push button for about five seconds
     setting starts flashing to indicate that the con-   until the three digits to the right stop flashing.
     cerned stage can be activated by pressing the
     STEP and PROGRAM buttons simultaneously.
     For any forced stage operation, the output
     relays will respond according to the setting of
     the relay output switchgroups SGR. Any time
     a certain stage is selected that is not wanted to
     operate, pressing the PROGRAM button once
     more will pass by this position and move to the
     next one without carrying out any operation of
     the selected stage.




14
Operation     A relay module is provided with a multiple of         indicator is reset by means of the RESET push
indication    separate operation stages, each with its own          button of the relay module. An unreset opera-
              operation indicator shown on the display and a        tion indicator does not affect the function of the
              common trip indicator on the lower part of the        protection relay module.
              front plate of the relay module.
                                                                    In certain cases the function of the operation
              The starting of a relay stage is indicated with one   indicators may deviate from the above princi-
              number which changes to another number when           ples. This is described in detail in the descrip-
              the stage operates. The indicator remains glow-       tions of the separate modules.
              ing although the operation stage resets. The


Fault codes   In addition to the protection functions the relay     the module. The fault code, which consists of a
              module is provided with a self-supervision sys-       red figure "1" and a three digit green code
              tem which continuously supervises the function        number, cannot be removed from the display by
              of the microprocessor, its program execution          resetting. When a fault occurs, the fault code
              and the electronics.                                  should be recorded and stated when service is
                                                                    ordered. When in a fault mode, the normal
              Shortly after the self-supervision system detects     relay menus are operative, i.e. all setting values
              a permanent fault in the relay module, the red        and measured values can be accessed although
              IRF indicator on the front panel is lit . At the      the relay operation is inhibited. The serial com-
              same time the module puts forward a control           munication is also operative making it possible
              signal to the output relay of the self-supervision    to access the relay information also from a
              system of the protection relay.                       remote site. The internal relay fault code shown
                                                                    on the display remains active until the internal
              In most fault situations a fault code, indicating     fault possibly disappears and can also be re-
              the nature of the fault, appears on the display of    motely read out as variable V 169.




                                                                                                                   15
SPCJ 4D29
Overcurrent and earth-fault relay module
User´s manual and Technical description




                                                              3I >
                                                               I

                               I   L1   I   L2   I   L3   I o IRF




                                                           RESET
                                        I >/I n            STEP

                                        t > [s]
                                        k

                                        I >> / I n

                                        t >> [s]

                                        I o >/ I n
                                        t o > [s ]
                                        ko

                                        I o >> /I n

                                        t o >>[s]
                                                          PROGRAM
                                        SGF

                                        SGB

                                        SGR

                                                            TRIP
                       0012A




                                                 SPCJ 4D29
1MRS 750119-MUM EN
                                                                                                        SPCJ 4D29
Issued 96-06-17
Version B (replaces 34 SPCJ 8 EN1)                                                             Combined overcurrent
Checked TK
Approved TK                                                                                      and earth-fault relay
Data subject to change without notice                                                                        module
Contents                     Features .......................................................................................................................... 2
                             Description of function .................................................................................................. 3
                             Block diagram ................................................................................................................. 5
                             Front panel ..................................................................................................................... 6
                             Start and operation indicators ......................................................................................... 7
                             Settings ........................................................................................................................... 8
                             Selector switches ............................................................................................................. 9
                             Measured data .............................................................................................................. 13
                             Recorded information ................................................................................................... 14
                             Menu and register chart ................................................................................................ 16
                             Time/current characteristic ........................................................................................... 18
                             Technical data .............................................................................................................. 26
                             Serial communication parameters ................................................................................. 27
                             Fault codes.................................................................................................................... 34




Features                     Low-set phase overcurrent stage I> with definite                          Six time/current curve sets at inverse time char-
                             time or inverse time characteristic                                       acteristic of the overcurrent stage I> and the
                                                                                                       earth-fault stage I0>
                             High-set phase overcurrent stage I>> with in-
                             stantaneous function or definite time character-                          Digital display of measured and set values and
                             istic                                                                     data sets recorded at the moment of relay opera-
                                                                                                       tion
                             Low-set earth-fault stage I0> with definite time
                             or inverse time characteristic                                            Parametrization of the module by push-buttons
                                                                                                       on the front panel or via the serial port using a
                             High-set earth-fault stage I0>> with definite                             portable PC and a suitable software
                             time characteristic
                                                                                                       Continuous hardware and software supervision
                                                                                                       including auto-diagnosis




2
Description of      The phase overcurrent unit of the relay module       Note!
function            SPCJ 4D29 is designed for single-phase, two-         The operation of the low-set stage based on
                    phase or three-phase overcurrent protection. It      inverse time characteristic will be blocked by
Phase overcurrent   includes two overcurrent stages, i.e. a low-set      starting of the high-set stage. Then the operate
unit                overcurrent stage I> and a high-set overcurrent      time of the overcurrent unit is determined by
                    stage I>>.                                           the set operate time of the high-set stage at heavy
                                                                         fault currents.
                    The low-set or high-set phase overcurrent stage
                    starts if the current on one or several of the       The setting range of the operate time t>> of the
                    phases exceeds the set start current value of the    high-set phase overcurrent stage is 0.04...300 s.
                    stage concerned. When the stage starts it gen-
                    erates a start signal SS1 or TS1 and simultane-      The operate signal of the two overcurrent stages
                    ously the digital display on the front panel         is provided with a latching feature (switch
                    indicates starting. If the overcurrent situation     SGB/6) which means that the operate signal
                    lasts long enough to exceed the set operate          TS2 is kept high after an operation, although
                    time, the stage operates and generates a trip        the overcurrent stage resets. The latched TS2
                    signal TS2. At the same time the operation           signal is reset by pushing the RESET and PRO-
                    indicator is lit with red light. The red operation   GRAM push-buttons simultaneously or via the
                    indicator remains lit although the stage resets.     serial port using the command V101, see also
                    The indicator is reset by pushing the RESET          chapter "Selector switches".
                    push-button. By proper configuration of the
                    output relay switchgroups an additional auxil-       The set start current value I>> of the high-set
                    iary trip signal TS1 can be obtained.                phase overcurrent stage can be doubled auto-
                                                                         matically on connection of the protected object
                    The operation of the low-set phase overcurrent       to the network, i.e. at starting. In this way the
                    stage I> or the high-set phase overcurrent stage     start current of the high-set phase overcurrent
                    I>> can be blocked by routing a blocking signal      stage can be given a lower value than the level of
                    BS to the unit. The blocking configuration is        the connection inrush current. The automatic
                    set with switchgroup SGB.                            doubling function is selected with switch SGF1/5.
                                                                         The starting, which activates the doubling func-
                    The operation of the low-set phase overcurrent       tion, is defined as a situation where the phase
                    stage can be based on definite time or inverse       currents rise from a value below 0.12 x I> to a
                    time characteristic. The operation characteris-      value exceeding 1.5 x I> in less than 60 ms. The
                    tic is selected with the SGF1/1…3 switches.          function stops when the currents fall below 1.25
                    At definite time operation characteristic the        x I>.
                    operate time t> is set in seconds within the
                    range, 0.05...300 s. When the inverse time           The setting range of the start current of the high-
                    operation characteristic (IDMT) is selected,         set phase overcurrent stage is 0.5...40 x In.
                    four internationally standardized and two com-       When the high-set stage is given a start current
                    plementary time/current curves are available.        setting in the lower end of the setting range, the
                    The selector switches SGF1/1...3 are also used       relay module will contain two almost identical
                    for selecting the desired operation characteris-     overcurrent stages. This enables the overcurrent
                    tic.                                                 unit of the SPCJ 4D29 module to be used, for
                                                                         example, in two-stage load shedding applica-
                    Note!                                                tions.
                    The maximum continuous current carrying
                    capacity of the energizing inputs is 4 x In,         The high-set phase overcurrent stage can be set
                    which must be observed when relay settings are       out of operation with switch SGF2/5. When the
                    calculated.                                          high-set stage is set out of operation the display
                                                                         shows "- - -", indicating that the start current
                    Note!                                                setting is infinite.
                    At inverse time characteristic the effective set-
                    ting range of the low-set overcurrent stage is
                    0.5…2.5 x In, although start current settings
                    within the range 2.5…5.0 x In can be set on the
                    relay. At inverse time characteristic any start
                    current setting above 2.5 x In of the low-set
                    stage will be regarded as being equal to 2.5 x In.




                                                                                                                          3
Earth-fault unit     The non-directional earth-fault unit of the relay     range, 0.05...300 s. When the inverse time
                     module SPCJ 4D29 is a single-pole earth-fault         operation characteristic (IDMT) is selected, four
                     unit. It contains two earth-fault stages, i.e. a      internationally standardized and two comple-
                     low-set earth-fault stage I0> and a high-set earth-   mentary time/current curves are available. The
                     fault stage I0>>.                                     selector switches SGF1/ 6...8 are also used for
                                                                           selecting the desired operation characteristic.
                     The low-set or high-set earth-fault stage starts,
                     if the measured current exceeds the set start         The setting range of the operate time t0>> of the
                     current value. When the stage starts it generates     high-set earth-fault stage is 0.05…300 s.
                     a start signal SS1 or TS1 and simultaneously the
                     digital display on the front panel indicates start-   Note!
                     ing. If the earth-fault situation lasts long enough   The operation of the low-set stage based on
                     to exceed the set operate time, the stage operates    inverse time characteristic will be blocked by
                     and generates a trip signal TS2. At the same time     starting of the high-set stage. Then the operate
                     the operation indicator TRIP is lit with red          time of the earth-fault unit is determined by the
                     light. The red operation indicator remains lit        set operate time of the high-set stage at heavy
                     although the stage resets. The indicator is reset     fault currents.
                     by pushing the RESET push-button. By proper
                     configuration of the output relay switchgroups        The operate signal of the two earth-fault stages
                     an additional auxiliary trip signal TS1 can be        is provided with a latching feature (switch SGB/7)
                     obtained.                                             which means that the operate signal TS2 is kept
                                                                           high after an operation, although the earth-fault
                     The operation of the low-set earth-fault stage        stage resets. The TS2 signal is reset by pushing
                     I0> or the high-set earth-fault stage I0>> can be     the RESET and PROGRAM push-buttons si-
                     blocked by routing a blocking signal BS to the        multaneously or via the serial port using the
                     earth-fault unit. The blocking configuration is       command V101, see chapter "Selector switches",
                     set with switchgroup SGB.                             page 9.

                     The operation of the low-set earth-fault stage        The high-set earth-fault stage can be set out of
                     can be based on definite time or inverse time         operation with switch SGF2/6. When the high-
                     characteristic. The operation characteristic is       set stage is set out of operation the display shows
                     selected with the SGF/6…8 switches. At defi-          "- - -", indicating that the start current setting is
                     nite time operation characteristic the operate        infinite.
                     time t0> is directly set in seconds within the


Circuit breaker      The relay module features a circuit breaker           an upstream circuit breaker. The CBFP unit can
failure protection   failure protection (CBFP) unit. The CBFP unit         also be used for tripping via redundant trip
unit                 generates a trip signal via TS1 after a set operate   circuits of the same circuit breaker, if the circuit
                     time 0.1...1 s, following the main trip signal        breaker is provided with two trip coils. The
                     TS2, if the fault has not been cleared before the     circuit breaker failure protection unit is alerted/
                     set operate time has elapsed. The output contact      set out of operation with switch SGF1/4.
                     of the CBFP unit is normally used for tripping


Remote setting       The relay can be given two sets of setting values,    command V150 via the serial port, ii) with a
                     the main settings and the second settings. Switch-    command via the external control input BS or
                     ing between main settings and second settings         manually by changing a parameter in submenu
                     can be done in three different ways, i) with a        4 of register A.




4
Block diagram
                                                                                  SGR3 / 1
                                                                                  SGR1 / 1
                                                                      50 ms       SGR3 / 2
                 IL1
                                                                                  SGR2 / 1
                                       I>                              t>, k      SGR2 / 2
                                                                                  SGR1 / 2
                 IL2
                                                     SGF1 / 1                     SGR3 / 3
                                                                                                                                               1
                                                                                  SGR1 / 3                                    RESET+
                 IL3                                 SGF1 / 2                                              SGB / 6
                        SGB / 1                                                   SGF2 / 7
                                                     SGF1 / 3
                                                                      30 ms       SGR3 / 4
                                                                                                                 1
                                                                                  SGR2 / 3
                                                                I>>
                                                                        t>>       SGR2 / 4
                                                                                  SGR1 / 4

                                                                                                                                                          SS1
                        SGB / 2

                 BS                                       SGF1 / 5                                                             SGF1 / 4
                                    0.12 x I>
                                                                                                           1
                                                                                                                     0.1…1s
                                                                                                                                                          AR2
                                                            2 x I>>

                                                 60 ms                                                                                                    SS2
                                     1.5 x I>                   &
                                                                                                                              SGF2 / 8
                                                                                                                                                          AR3
                                                                                  SGR3 / 5
                                                                                  SGR1 / 5
                                                                      50 ms       SGR3 / 6
                                                                                                                                                          SS3
                                        I >                                       SGR2 / 5
                                            0                           t0>, k0
                                                                                  SGR2 / 6                                                                AR1
                  Io                                                              SGR1 / 6



                       SGB / 3                                                    SGR3 / 7
                                                     SGF1 / 6                                                                 RESET+
                                                                                  SGR1 / 7                 SGB / 7
                                                     SGF1 / 7                                                                             1               TS2
                                                                      30 ms       SGR3 / 8
                                                     SGF1 / 8
                                                                                  SGR2 / 7                       1
                                        I                               t >>
                                        0>>                              0        SGR2 / 8
                                                                                  SGR1 / 8
                                                                                                                                                   TRIP
                       SGB / 4

                       SGB / 5
                                   REMOTE SETTINGS
                       SGB / 8
                                   RELAY RESET
                                                                                                                                          SPCJ 4 D 29




                Fig. 1. Block diagram for the combined overcurrent and earth-fault relay module SPCJ 4D29.

                IL1, IL2, IL3      Energizing currents
                I0                 Residual current
                BS                 External control signal
                SGF1…2             Selector switchgroup SGF for operational relay functions
                SGB                Selector switchgroup SGB for special relay functions
                SGR1...3           Selector switchgroups SGR for configuration of output relays
                TS1                Start signal 1 or auxiliary trip signal configured with switchgroup SGR3
                SS1                Start signal configured with switchgroup SGR1
                SS2                Trip signal 1 configured with switchgroup SGR2
                SS3                Trip signal 2 configured with switchgroup SGR2
                TS2                Trip signal configured with switchgroup SGR1
                AR1, AR2, AR3      Start signals to possible external optional auto-reclose relays
                TRIP               Red operation (trip) indicator

                Note!
                All input and output signals of the relay module                             nals of a particular protection relay are shown in
                are not necessarily wired to the terminals of a                              the signal diagram in the general part of the relay
                particular relay. The signals wired to the termi-                            manual.




                                                                                                                                                                5
Front panel
                                                                                                                                           3I >
                                                                                                                                            I

                   Indicators for the measured phase currents IL1, IL2, IL3                                 I   L1   I   L2   I   L3   I o IRF
                   and the residual current I0



                                                                                                                                        RESET
                   Indicator for the start current of the I> stage                                                   I >/I n            STEP

                   Indicator for the operate time t> or time multiplier k                                            t > [s]
                                                                                                                     k
                   of the I> stage
                                                                                                                     I >> / I n
                   Indicator for the start current of the I>> stage
                   Indicator for the operate time of the I>> stage                                                   t >> [s]

                   Indicator for the start current of the I0> stage                                                  I o >/ I n
                   Indicator for the operate time t0> or time multiplier k0                                          t o > [s ]
                   of the I0> stage                                                                                  ko

                   Indicator for the start current of the I0>> stage                                                 I o >> /I n

                   Indicator for the operate time of the I0>> stage                                                  t o >>[s]
                                                                                                                                       PROGRAM
                   Indicator for the checksum of switchgroups SGF1…2                                                 SGF

                   Indicator for the checksum of switchgroup SGB                                                     SGB

                   Indicator for the checksum of switchgroups SGR1...3                                               SGR

                                                                                                                                         TRIP




                                                                                                    0012A
                                                                                                                              SPCJ 4D29


                                                          3I >   Relay module symbol
                                                           I

                           I   L1   I   L2   I   L3   I o IRF
                                                                 Self-supervision alarm indicator

                                                                 Digital display


                                                       RESET
                                    I >/I n            STEP

                                    t > [s]
                                    k                            Reset and display step push-button
                                    I >> / I n

                                    t >> [s]

                                    I o >/ I n
                                    t o > [s ]
                                    ko

                                    I o >> /I n

                                    t o >>[s]
                                                      PROGRAM
                                    SGF
                                                                 Selector push-button
                                    SGB

                                    SGR

                                                        TRIP
                                                                 TRIP indicator
                   0012A




                                             SPCJ 4D29           Type designation of the module


              Fig. 2. Front panel of the combined overcurrent and earth-fault relay module SPCJ 4D29.

6
Start and    Both overcurrent stages have their own start             has operated. The start or operation indicators
operation    indicators and operation indicators shown as             are reset by pushing the RESET push-button.
indicators   figures on the digital display. Further, all the         The function of the relay module is not affected
             protection stages share a common red LED                 by an unreset indicator. If the starting of a stage
             indicator marked "TRIP" which is located in              is short enough not to cause an operation of the
             the lower right corner of the front panel and            relay, the start indication is normally self-reset
             which is lit on operation of a stage.                    when the stage resets. By means of switches
                                                                      SGF2/1…4 the start indicators can be configured
             The figure on the display indicating starting or         for manual resetting. The following table shows
             operation remains lit when the current stage             a guide to the start and trip indicators of the
             resets, thus indicating which protection stage           relay module.

              Indication      Explanation

                   1          I> START           = the low-set stage I> of the overcurrent unit has started
                   2          I> TRIP            = the low-set stage I> of the overcurrent unit has operated
                   3          I>> START          = the high-set stage I>> of the overcurrent unit has started
                   4          I>> TRIP           = the high-set stage I>> of the overcurrent unit has operated
                   5          I0> START          = the low-set stage I0> of the earth-fault unit has started
                   6          I0> TRIP           = the low-set stage I0> of the earth-fault unit has operated
                   7          I0>> START         = the high-set stage I0>> of the earth-fault unit has started
                   8          I0>> TRIP          = the high-set stage I0>> of the earth-fault unit has operated
                   9          CBFP               = the circuit breaker failure protection has operated


             When one of the protection stages of the relay           The self-supervision alarm indicator IRF indi-
             module operates, the indicators for the energiz-         cates, when lit, that the self-supervision system
             ing current of the module show the faulty phase,         has detected a permanent internal relay fault.
             i.e. in which phase(s) the current has exceeded          The indicator is lit with red light shortly after a
             the set start value of the stage (so called phase        fault has been detected. At the same time the
             fault indication). If, for instance, the operation       relay module generates a control signal to the
             indicator "2" of the low-set stage is lit , as are the   output relay of the self-supervision system IRF.
             indicators IL1 and IL2 also, the relay operation         Additionally, in most fault cases, an auto-diag-
             has been caused by overcurrent on the L1 and L2          nostic fault code showing the nature of the fault
             phases. The fault indications are reset by push-         appears on the display. The fault code, consists
             ing the RESET push-button.                               of a red figure one (1) and a green code number.
                                                                      When a fault code is obtained it should be
                                                                      recorded for statistical and maintenance pur-
                                                                      poses.




                                                                                                                       7
Settings   The setting values are shown by the right-most       symbol of the setting quantity shows the quan-
           three digits of the display. When lit, the LED       tity currently being displayed.
           indicators on the front panel adjacent to the

             I>/In     Start current of the I> stage as a multiple of the rated current of the used energizing
                       input. Setting range 0.5...5.0 x In at definite time characteristic and 0.5…2.5 x In at
                       inverse time characteristic.

                       Note! At inverse time characteristic any setting above 2.5 x In will be regarded as being
                       equal to 2.5 x In.

             t>        Operate time of the I> stage expressed in seconds, at definite time characteristic
                       (SGF1/1-2-3 = 0-0-0). Setting range 0.05...300 s.

             k         Time multiplier of the I> stage at inverse time characteristic. Setting range 0.05...1.00.

             I>>/In    Start current of the I>> stage as a multiple of the rated current of the used energizing
                       input. Setting range 0.5...40.0 x In. Additionally the setting "infinite" (displayed as
                       n - - -) can be selected with switch SGF2/5, which means that the high-set stage I>>
                       is out of operation.

             t>>       Operate time of the I>> stage expressed in seconds. Setting range 0.04...300 s.

             I0>/In    Start current of the I0> stage as a multiple of the rated current of the used energizing
                       input. Setting range 0.1...0.8 x In.

             t0>       Operate time of the I0> stage, expressed in seconds, at definite time characteristic
                       (SGF1/6-7-8 = 0-0-0). Setting range 0.05...300 s.

             k0        Time multiplier k0 of the I0> stage at inverse time characteristic. Setting range
                       0.05...1.00.

             I0>>/In   Start current of the I0>> stage as a multiple of the rated current of the used energizing
                       input. Setting range 0.1...10.0 x In. Additionally the setting "infinite" (displayed as
                       n - - -) can be selected with switch SGF2/6, which means that the earth-fault stage
                       I0>> is out of operation.

             t0>>      Operate time of the I0>> stage expressed in seconds. Setting range 0.05...300 s.


           Further, the checksums of switchgroups SGF1,         the first switchgroup. For further information,
           SGB and SGR1 are shown on the display when           see chapter "Menus and registers". An example
           the indicators adjacent to the switchgroup sym-      of how the checksum can be calculated manu-
           bols on the front panel are lit. The checksums       ally is given in manual "General characteristics
           for switchgroups SGF2, SGR2 and SGR3 are             of D type relay modules..
           found in the submenus under the main menu of




8
Selector switches   Additional functions required in various appli-     groups are set. Under normal service conditions
                    cations are selected with switchgroups SGF,         only the checksums are shown. Switchgroups
                    SGB and SGR indicated on the front panel. The       SGF2, SGR2 and SGR3 are found in the sub-
                    numbering of the switches, 1...8, and the switch    menus of the main menus of switchgroups SGF
                    positions 0 and 1 are shown when the switch-        and SGR.

Function switch-
group SGF1           Switch     Function

                     SGF1/1     Switches SGF1/1...3 are used for selecting the characteristic of the low-set overcurrent
                     SGF1/2     stage I>, i.e. definite time operation characteristic or inverse definite minimum time
                     SGF1/3     (IDMT) characteristic. At IDMT characteristic the switches are also used for selecting
                                the required current/time characteristic for the stage.

                                 SGF1/1 SGF1/2 SGF1/3 Characteristic                Time or curve set

                                     0          0         0      Definite time      0.05...300 s
                                     1          0         0      IDMT               Extremely inverse
                                     0          1         0      IDMT               Very inverse
                                     1          1         0      IDMT               Normal inverse
                                     0          0         1      IDMT               Long-time inverse
                                     1          0         1      IDMT               RI-characteristic
                                     0          1         1      IDMT               RXIDG-characteristic
                                     1          1         1        ---              (Long-time inverse)


                     SGF1/4     Circuit breaker failure protection (CBFP).

                                When SGF1/4 =1 the trip signal TS2 will start a timer which will generates a delayed
                                operate signal via TS1, if the fault has not been cleared before the operate time has
                                elapsed.
                                When switch SGF1/4 = 0 the circuit breaker failure protection is out of operation.

                     SGF1/5     Automatic doubling of the set start current of the high-set overcurrent stage I>> when
                                the protected object is energized.

                                When SGF1/5 = 0, no doubling of the start current setting of stage I>> is obtained.
                                When SGF1/5 = 1, the start current setting of stage I>> doubles automatically.
                                The doubling feature makes it possible to give the high-set stage a setting value below
                                the connection inrush current level.

                     SGF1/6     Switches SGF1/6...8 are used for selecting the operation characteristic of the low-set
                     SGF1/7     earth-fault stage I0>, i.e. definite time characteristic or inverse definite minimum time
                     SGF1/8     (IDMT) characteristic. At inverse definite minimum time characteristic the switches
                                are also used for selecting the current/time characteristic of the stage.

                                 SGF1/6 SGF1/7 SGF1/8 Characteristic                Time or curve

                                     0          0         0      Definite time      0.05…300 s
                                     1          0         0      IDMT               Extremely inverse
                                     0          1         0      IDMT               Very inverse
                                     1          1         0      IDMT               Normal inverse
                                     0          0         1      IDMT               Long-time inverse
                                     1          0         1      IDMT               RI-characteristic
                                     0          1         1      IDMT               RXIDG-characteristic
                                     1          1         1      IDMT               Not in use (long-time inverse)


                    On delivery from the factory all switches SGF1
                    are set at zero, i.e. the checksum for SGF1 is 0.


                                                                                                                            9
Function switch-
group SGF2          Switch     Function

                    SGF2/1     Switches SGF2/1...4 are used for selecting the operation characteristic of the start
                    SGF2/2     indicators of the different stages. When the switches are in position 0 the start signals
                    SGF2/3     are all automatically reset when the fault is cleared. To give the indicator of a stage the
                    SGF2/4     hand reset mode of operation, the corresponding switch is set in position 1:

                               SGF2/1 = 1 equals manual reset mode for the start indication of stage I>
                               SGF2/2 = 1 equals manual reset mode for the start indication of stage I>>
                               SGF2/3 = 1 equals manual reset mode for the start indication of stage I0>
                               SGF2/4 = 1 equals manual reset mode for the start indication of stage I0>>

                    SGF2/5     Operation of the high-set phase overcurrent stage I>>.

                               When SGF2/5 = 0 the high-set stage I>> is alerted
                               When SGF2/5 = 1 the high-set stage I>> is out of operation and the display shows
                               "- - -"

                    SGF2/6     Operation of the high-set earth-fault stage I0>>.

                               When SGF2/6 = 0 the high-set stage I0>> is alerted
                               When SGF2/6 = 1 the high-set stage I0>> is out of operation and the display shows
                               "- - -"

                    SGF2/7     Start signal of the high-set stage I>> to the auto-reclose signal output AR1.

                               When SGF2/7 = 1, the start signal of the I>> stage is routed to output AR1.

                               Note! Outputs AR1 and SS3 are interconnected and they always carry the same signal.
                               Therefore, if AR1 is used for starting auto-reclose functions, SS3 cannot be used for
                               any other purpose.

                               When SGF2/7 =0, the start signal of the I>> stage is not routed to output AR1 nor
                               SS3. Thus the signal output SS3 is available for other purposes.

                    SGF2/8     Start signal of the low-set stage I0> or high-set stage I0>> to auto-reclose signal output
                               AR3.

                               When SGF2/8 = 0 the start signal from the I0> stage is routed to output AR3
                               When SGF2/8 = 1 the start signal from the I0>> stage is routed to output AR3

                   When the relay is delivered from the factory the
                   SGF2 switches are set at zero, i.e. the checksum
                   for SGF2 is 0.




10
Blocking or control
signal configuration    Switch     Function
switchgroup SGB
                        SGB/1      Switches SGB/1...4 are used for routing an external blocking signal BS to one or more
                        SGB/2      of the protection stages of the relay module. When the switches all are in position 0
                        SGB/3      no stage is blocked.
                        SGB/4
                                   When SGB/1 = 1 the I> stage is blocked by the external control signal BS
                                   When SGB/2 = 1 the I>> stage is blocked by the external control signal BS
                                   When SGB/3 = 1 the I0> stage is blocked by the external control signal BS
                                   When SGB/4 = 1 the I0>> stage is blocked by the external control signal BS

                        SGB/5      Selection of main settings or second settings with an external control signal BS or via
                                   the serial interface using command V150.

                                   When SGB/5 = 0 the settings can be controlled via the serial port but not via the
                                   external control input BS
                                   When SGB/5 = 1, the settings can be controlled via the external control input. The
                                   main values are enforced when the control input is not energized and the second
                                   settings are enforced when the control input is energized.

                                   Note! When the application includes switching between main and second settings,
                                   it should be noted that switch SGB/5 must have the same position in the main set of
                                   settings and the second set of settings. Otherwise a conflict situation might occur when
                                   the settings are switched by external control or via the serial port.

                        SGB/6      Latching of the trip signal TS2 of the phase overcurrent unit.

                                   When SGB/6 = 0 the trip signal returns to its initial state (= the output relay drops
                                   off), when the energizing signal causing the operation falls below the set start current.
                                   When SGB/6 = 1 the trip signal is latched (= the output relay remains picked up after
                                   operation), although the energizing signal falls below the start current. The trip signal
                                   is to be manually reset by pushing the push-buttons RESET and PROGRAM
                                   simultaneously. 1)

                        SGB/7      Latching of the trip signal TS2 of the earth-fault unit.

                                   When SGB/7 = 0 the trip signal returns to its initial state (= the output relay drops
                                   off), when the measuring signal causing the operation falls below the set start current.
                                   When SGB/7 = 1 the trip signal is latched (= the output relay remains picked up after
                                   operation), although the energizing signal falls below the start current. The trip signal
                                   is to be manually reset by pushing the push-buttons RESET and PROGRAM
                                   simultaneously. 1)

                        SGB/8      Remote resetting of a latched output relay and memorized values.

                                   When the output TS2 has been given the latching mode with switch SGB/6 or SGB/7,
                                   a remote reset can be performed using the external control input BS, when switch
                                   SGB/8 =1.


                       When the relay is delivered from the factory the    1)   From the program versions 037F or 056A
                       SGB switches are set at zero, i.e. the checksum          and later versions an additional feature has
                       for SGB is 0.                                            been incorporated into the relay module SPCJ
                                                                                4D29. When the latching function is used
                                                                                the latched output can be reset by pushing the
                                                                                PROGRAM button alone, in which case the
                                                                                stored information of the module is not erased.




                                                                                                                            11
Output relay matrix
switchgroups SGR1,    SGR1     The switches of switchgroup SGR1 are used to select the start and operate signals
SGR2 and SGR3                  to be routed to outputs SS1 and TS2.

                      SGR2     The switches of switchgroup SGR2 are used for routing the operate signals of the
                               protection stages to the outputs SS2 and SS3.

                      SGR3     The switches of switchgroup SGR3 are used to route the start and operate signals to
                               the start or auxiliary trip output TS1. Note! If the circuit breaker failure protection
                               has been taken in use with switch SGF1/4, it will also occupy the TS1 output.



                      Switch   Function                                                         Factory    Checksum
                      number                                                                    setting    value

                      SGR1/1 When SGR1/1 = 1, the start signal of the I> stage is
                             routed to SS1                                                         1             1
                      SGR1/2 When SGR1/2 = 1, the operate signal of the I> stage
                             is routed to TS2                                                      1             2
                      SGR1/3 When SGR1/3 = 1, the start signal of the I>> stage is
                             routed to SS1                                                         0             4
                      SGR1/4 When SGR1/4 = 1, the operate signal of the I>> stage
                             is routed to TS2                                                      1             8
                      SGR1/5 When SGR1/5 = 1, the start signal of the I0> stage
                             is routed to SS1                                                      0           16
                      SGR1/6 When SGR1/6 = 1, the operate signal of the I0> stage
                             is routed to TS2                                                      1           32
                      SGR1/7 When SGR1/7 = 1, the staring signal of the I0>> stage
                             is routed to SS1                                                      0           64
                      SGR1/8 When SGR1/8 = 1, the operate signal of the I0>> stage
                             is routed to TS2                                                      1          128

                               Checksum for the factory settings of switchgroup SGR1                          171



                      SGR2/1 When SGR2/1 = 1, the operate signal of the I> stage
                             is routed to SS2                                                      1             1
                      SGR2/2 When SGR2/2 = 1, the operate signal of the I> stage
                             is routed to SS3                                                      0             2
                      SGR2/3 When SGR2/3 = 1, the operate signal of the I>> stage
                             is routed to SS2                                                      1             4
                      SGR2/4 When SGR2/4 = 1, the operate signal of the I>> stage
                             is routed to SS3                                                      0             8
                      SGR2/5 When SGR2/5 = 1, the operate signal of the I0> stage
                             is routed to SS2                                                      0           16
                      SGR2/6 When SGR2/6 = 1, the operate signal of the I0> stage
                             is routed to SS3                                                      1           32
                      SGR2/7 When SGR2/7 = 1, the operate signal of the I0>> stage
                             is routed to SS2                                                      0           64
                      SGR2/8 When SGR2/8 = 1, the operate signal of the I0>> stage
                             is routed to SS3                                                      1          128

                               Checksum for the factory settings of switchgroup SGR2                          165




12
                 Switch      Function                                                       Factory   Checksum
                 number                                                                     setting   value

                 SGR3/1 When SGR3/1 = 1, the start signal of the I> stage
                        is routed to TS1                                                       0              1
                 SGR3/2 When SGR3/2 = 1, the trip signal of the I> stage
                        is routed to TS1                                                       0              2
                 SGR3/3 When SGR3/3 = 1, the start signal of the I>> stage
                        is routed to TS1                                                       0              4
                 SGR3/4 When SGR3/4 = 1, the trip signal of the I>> stage
                        is routed to TS1                                                       0              8
                 SGR3/5 When SGR3/5 = 1, the start signal of the I0> stage
                        is routed to TS1                                                       0              16
                 SGR3/6 When SGR3/6 = 1, the trip signal of the I0> stage
                        is routed to TS1                                                       0              32
                 SGR3/7 When SGR3/7 = 1, the start signal of the I0>> stage
                        is routed to TS1                                                       0              64
                 SGR3/8 When SGR3/8 = 1, the trip signal of the I0>> stage
                        is routed to TS1                                                       0         128

                             Checksum for the factory settings of switchgroup SGR3                             0



Measured data   The measured current values are shown by the        displayed at the present time is indicated by a
                three right-most digits of the display. The value   LED indicator on the front panel.

                 Indicator    Measured data

                     IL1      Line current on phase L1 as a multiple of the rated current In of the used
                              energizing input (0…63 x In).
                     IL2      Line current on phase L2 as a multiple of the rated current In of the used
                              energizing input (0…63 x In).
                     IL3      Line current on phase L3 as a multiple of the rated current In of the used
                              energizing input (0…63 x In).
                     I0       Residual current as a multiple of the rated current In of the used energizing
                              input (0…21 x In).




                                                                                                                   13
Recorded      The left-most red digit shows the address of the     The // symbol in the text indicates that the item
information   register and the right-most three digits the re-     following the symbol is found in a submenu.
              corded value.

               Register/ Recorded information
               STEP

                   1      Phase current IL1 displayed as a multiple of the rated current of the used input of the
                          overcurrent unit. If the overcurrent unit starts or operates, the current value at the
                          moment of operation is recorded in a memory stack. Any new operation adds a new
                          value to the stack and moves the old values one place forward. Five values are
                          memorized. If a sixth value is recorded, the oldest value is lost.

                   2      Phase current IL2 measured as a multiple of the rated current of the used input of the
                          overcurrent unit. If the overcurrent unit starts or operates, the current value at the
                          moment of operation is recorded in a memory stack. Any new operation adds a new
                          value to the stack and moves the old values one place forward. Five values are
                          memorized. If a sixth value is recorded, the oldest value is lost.

                   3      Phase current IL3 measured as a multiple of the rated current of the used input of the
                          overcurrent unit. If the overcurrent unit starts or operates, the current value at the
                          moment of operation is recorded in a memory stack. Any new operation adds a new
                          value to the stack and moves the old values one place forward. Five values are
                          memorized. If a sixth value is recorded, the oldest value is lost.

                   4      Maximum demand current value for a period of 15 minutes expressed in multiples
                          of the rated current In of the used energizing input and based on the highest phase
                          current. // Highest maximum demand current value recorded after the last relay
                          reset.
                   5      Duration of the last start situation of the I> stage as a percentage of the set operate
                          time t> or at IDMT characteristic the calculated operate time. At any new start the
                          time counter starts from zero. Five start times are memorized. If a sixth start occurs
                          the oldest start time is lost. When the concerned stage has operated, the counter
                          reading is 100. // Number of starts of the low-set overcurrent stage I>, n (I>) =
                          0...255.

                   6      Duration of the last start situation of the I>> stage as a percentage of the set operate
                          time t>>. At any new start the time counter starts from zero. Five start times are
                          memorized. If a sixth start occurs the oldest start time is lost. When the concerned
                          stage has operated, the counter reading is 100. // Number of starts of the high-set
                          overcurrent stage I>>, n (I>>) = 0...255.

                   7      Neutral current I0 displayed as a multiple of the rated current of the used energizing
                          input of the earth-fault unit. If the earth-fault unit starts or operates, the current
                          value at the moment of operation is recorded in a memory stack. Any new operation
                          adds a new value to the memory stack and moves the old values forward one place.
                          Five values are memorized - if a sixth value is recorded, the oldest value will be lost.

                   8      Duration of the latest start situation of stage I0> as a percentage of the set operate time
                          t0> or in IDMT operation characteristic the calculated operate time. At any new start
                          the time counter starts from zero. Five start times are memorized. If a sixth start is
                          recorded the oldest start time is lost. When the concerned stage has operated, the
                          counter reading is 100. // Number of starts of the high-set overcurrent stage I>>, n
                          (I>>) = 0...255.
                   9      Duration of the latest start situation of stage I0>> as a percentage of the set operate
                          time t0>>. At any new start the time counter starts from zero. Five start times are
                          memorized. If a sixth start is recorded the oldest start time will be lost. When the
                          concerned stage has operated, the counter reading is 100. // Number of starts of the
                          high-set earth-fault stage I0>>, n (I0>>) = 0...255.




14
 Register/ Recorded information
 STEP

     0        Display of blocking signals and other external control signals.
              The right-most digit indicates the state of the blocking input of the module. The
              following states may be indicated:
              0 = no blocking signal
              1 = blocking or control signal BS active.

              The function of the external control signal on the relay unit is determined by the
              settings of switchgroup SGB

              From register "0" the TEST mode can be reached. In the TEST mode the start and
              trip signals of the relay module can be activated one by one. For further details see
              description "General characteristics of D type relay modules".

     A        The address code of the protection relay module, required by the serial communi-
              cation system. The address code is set at zero when no serial communication is to be
              used. The submenus of this register include the following settings or functions.
              - 1st submenu. Selection of data transfer rate for the communication system.
                Selectable values 4800 Bd or 9600 Bd.
              - 2nd submenu. Bus communication monitor. If the relay is connected to bus
                communication unit, e.g. type SRIO 1000M, and the communication system is
                working properly, the monitor shows the value zero. When the communication
                system is out of operation the values 0…255 scroll in the monitor.
              - 3rd submenu. Password for allowing remote changing of setting values. The
                password must always be given via the serial port.
              - 4th submenu. Selection of main settings versus second settings.
              - 5th submenu. Setting of the operate time of the circuit breaker failure protection
                unit.

     -        Display dark. By pushing the STEP push-button the beginning of the display
              sequence is reached.


Registers 1...9 are erased by pushing the RESET        tion system, the password and the status of the
and PROGRAM push-buttons simultaneously.               main/second setting bank switch are not erased
The contents of the registers are also erased if the   by a voltage failure. Instructions for setting the
auxiliary power supply of the module is inter-         address and the data transfer rate are given in
rupted. The address code of the relay module,          manual "General characteristics of D type relay
the data transfer rate of the serial communica-        modules".




                                                                                                      15
Menu and
register chart
                          MAIN MENU                                        SUBMENUS

                                                        STEP 0.5 s   PROGRAM 1 s



                              Normal status, display off


                              Current on phase L1


                              Current on phase L2


                              Current on phase L3

                                                                              REV. STEP 0.5 s                             FWD. STEP 1 s
                              Neutral current Io
                                                                                                      SUBMENUS


                                                                       1    Main setting                           2     Second setting
                              Actual start value I>                         value for I>                                 value for I>

                              Actual operate time t> or                1    Main setting                           2     Second setting
                              multiplier k for stage I>                     value for t> or k                            value for t> or k

                              Actual start value I>>                   1    Main setting                           2     Second setting
                                                                            value for I>>                                value for I>>

                              Actual operate time t>>                  1    Main setting                           2     Second setting
                              of stage I>>                                  value for t>>                                value for t>>
                 R
                 E
                 V.
                              Actual start value Io>                   1    Main setting                           2     Second setting
                 S
                                                                            value for Io>                                value for Io>
                 T
                 E
                 P            Actual operate time to>                  1    Main setting                           2     Second setting
                              or multiplier ko                              value for to> or ko                          value for to> or ko
                 .5
                 s
                                                                       1    Main setting                           2     Second setting
                      M       Actual start value Io>>
                      A
                                                                            value for Io>>                               value for Io>>
                      I
                      N       Actual operate time to>>                 1    Main setting                           2     Second setting
                                                                            value for to>>                               value for to>>
                      M
                      E
                              Actual setting of functional             1 Main setting of                           2     Main setting of
                              switchgroup SGF1                           SGF1 checksum                                   SGF2 checksum
                      N
                      U
                              Actual setting of blocking               1    Main setting of                        2     Second setting of
                 F
                              switchgroup SGB                               SGB checksum                                 SGB checksum
                 W
                 D.
                              Actual setting of relay                  1    Main setting of                        2     Main setting of
                 S            switchgroup SGR1                              SGR1 checksum                                SGR2 checksum
                 T
                 E
                 P
                          1   Latest memorized, event (n)              1 Event (n-1)                               2 Event (n-2)
                              value of phase L1                          value of phase L1                           value of phase L1              1
                 1
                 s

                          2
                              Latest memorized, event (n)              1 Event (n-1)                               2     Event (n-2)
                              value of phase L2                          value of phase L2                               value of phase L2          2

                              Latest memorized, event (n)              1 Event (n-1)                               2     Event (n-2)
                          3
                              value of phase L3                          value of phase L3                               value of phase L3          3

                              Maximum demand current                   1 Highest maximum
                          4   value for 15 minutes                       demand value found

                          5   Duration of event (n)                    1 Duration of event (n-1)                   2 Duration of event (n-2)
                              starting of stage I>                       starting of stage I>                        starting of stage I>           5

                              Duration of event (n)                    1 Duration of event (n-1)                   2     Duration of event (n-2)
                          6
                              starting of stage I>>                      starting of stage I>>                           starting of stage I>>      6

                              Latest memorized, event (n)              1 Event (n-1)                               2     Event (n-2)
                          7                                                                                              value of current Io
                              value of neutral current Io                value of current Io                                                        7

                              Duration of event (n)                    1 Duration of event (n-1)                   2     Duration of event (n-2)
                          8
                              starting of stage Io>                      starting of stage Io>                           starting of stage Io>      8

                              Duration of event (n)                    1    Duration of event (n-1)                2 Duration of event (n-2)
                          9   starting of stage Io>>                        starting of stage Io>>                   starting of stage Io>>
                                                                                                                                                    9

                          0   Status of external relay                                  I>    I>&t>   I»   I»&t»
                              blocking / control signal                0     000                                   Io>    Io>&to>   Io»   Io»&to»



                              Relay unit identification                1    Communication rate                     2     Loss of bus traffic time
                          A                                                 setting [Bd]                                 counter 0..255 s
                              address for communication                                                                                             A




16
The procedures for entering a submenu or a                    described in detail in the manual "General char-
setting mode and the method of performing the                 acteristics of D type relay modules". A short
settings and the use of the TEST mode are                     form guide to the operations is shown below.

 Desired step or setting operation                   Push-button                        Action

 Forward step in main menu or submenu STEP                                              Push for more than 0.5 s
 Rapid scan forward in main menu                     STEP                               Keep pushing
 Reverse step in main menu or submenu                STEP                               Push less than about 0.5 s
 Entering submenu from main menu                     PROGRAM                            Push for 1 s
                                                                                        (Active on release)
 Entering or leaving setting mode                    PROGRAM                            Push for 5 s
 Increasing value in setting mode                    STEP
 Moving the cursor in setting mode                   PROGRAM                            Push for about 1 s
 Storing a value in setting mode                     STEP&PROGRAM                       Push simultaneously
 Erasing of memorized values and                     STEP&PROGRAM
 resetting of latched output relays
 Resetting of latched output relays                  PROGRAM                            Note! Display must be off

 Note! All parameters which can be set in the setting mode are indicated with the symbol                                       .



          3   Second setting of       4   Second setting of
              SGF1 checksum               SGF2 checksum




          3   Main setting of             Second setting of             5       Second setting of                       Second setting of
                                      4                                                                             6
              SGR3 checksum               SGR1 checksum                         SGR2 checksum                           SGR3 checksum

          3   Event (n-3)             4   Event (n-4)
 1            value of phase L1           value of phase L1

          3   Event (n-3)             4   Event (n-4)
 2            value of phase L2           value of phase L2

          3   Event (n-3)                 Event (n-4)
                                      4
              value of phase L3           value of phase L3
 3




                                                                                 Number of low-set I>
          3 Duration of event (n-3)   4
                                          Duration of event (n-4)           5
                                                                                 starts since latest reset
 5
            starting of stage I>          starting of stage I>

          3 Duration of event (n-3)   4
                                          Duration of event (n-4)           5 Number of high-set I>>
            starting of stage I>>         starting of stage I>>               starts since latest reset
 6

              Event (n-3)                 Event (n-4)
         3                            4
              value of current Io         value of current Io
 7
                                                                                  Number of low-set earth-
          3 Duration of event (n-3)   4 Duration of event (n-4)             5
                                                                                  fault starts since latest reset
 8          starting of stage Io>       starting of stage Io>

                                                                                  Number of high-set earth-
          3 Duration of event (n-3)   4
                                          Duration of event (n-4)           5
                                                                                  fault starts since latest reset
 9
            starting of stage Io>>        starting of stage Io>>




              Password for                Selection of main vs.                  Operating time for the
         3                            4                                     5
 A
              altering settings           second setting                         CB-failure protection




                                                                                                                                            17
Time/current     The operation of the low-set overcurrent stage        When IDMT characteristic has been selected,
characteristic   I> and the low-set earth-fault stage I0> is based     the operate time of the stage will be a function
                 on definite time or inverse time characteristic, as   of the current; the higher the current, the shorter
                 selected by the user. The operation characteris-      the operate time.The stage includes six time/
                 tic is selected with switches 1...3 of switchgroup    current curve sets - four according to the BS 142
                 SGF1 for the overcurrent stage I> and with            and IEC 255 standards and two special curve
                 switches SGF1/6...8 for the earth-fault stage I0>     sets, named RI type and RXIDG type, accord-
                 (see chapter "Selector switches", page 7).            ing to ABB standards.


IDMT             Four standard curves named extremely inverse,         The slope of the time/current curve sets is deter-
characteristic   very inverse, normal inverse and long- time           mined by the constants α and β as follows:
                 inverse are available. The relationship between
                 current and time complies with the BS 142.1966          Slope of the time/           α             β
                 and IEC 255-4 standards and can be expressed            current curve set
                 as follows:
                                                                         Normal inverse             0.02         0.14
                                                                         Very inverse               1.0         13.5
                           kxβ
                 t [s] =                                                 Extremely inverse          2.0         80.0
                            I α -1
                           ( )
                           I>
                                                                         Long-time inverse          1.0        120.0

                 where                                                 According to the standard BS 142.1966 the
                 t = operate time in seconds                           normal current range is defined as 2...20 times
                 k = time multiplier                                   the set start current. Additionally the relay must
                 I = measured current value                            start at the latest when the current exceeds 1.3
                 I> = set start current value                          times the set start current, when the time/
                                                                       current characteristic is normal inverse, very
                 The relay includes four time/current curve sets       inverse or extremely inverse. At long-time in-
                 according to BS 142.1966 and IEC 255-4.               verse characteristic, the normal range is 2...7
                                                                       times the set start current and the relay must
                                                                       start when the current exceeds 1.1 times the
                                                                       setting.

                                                                       The following requirements with regard to op-
                                                                       erate time tolerances are specified in the stand-
                                                                       ard (E denotes accuracy in per cent, - = not
                                                                       specified):

                  I/I>       Normal inv.               Very inv.            Extremely inv.           Long-time inv.

                   2            2.22 E                   2.34 E                  2.44 E                    2.34 E
                   5            1.13 E                   1.26 E                  1.48 E                    1.26 E
                   7               -                        -                       -                      1.00 E
                  10            1.01 E                   1.01 E                  1.02 E                       -
                  20            1.00 E                   1.00 E                  1.00 E                       -

                 In the defined normal current ranges, the in-         The time/current curves specified in the BS-
                 verse-time stages of the overcurrent and earth-       standards are illustrated in Fig. 3, 4, 5 and 6.
                 fault unit SPCJ 4D29 comply with the toler-
                 ances of class 5 for all time/current curves.




18
RI-type          The RI-type characteristic is a special character-   where
characteristic   istic used mainly in combination with existing       t = operate time in seconds
                 mechanical relays. The characteristic is based on    k = time multiplier
                 the following mathematical expression:               I = measured phase current
                                                                      I> = set start current
                 t [s] =           k
                                             I>                       The graph of the characteristic is shown in
                           0.339 - 0.236 x
                                             I                        Fig.7.


RXIDG-type       The RXIDG-type characteristic is a special           The characteristic is based on the following
characteristic   characteristic used mainly for earth-fault pro-      mathematical expression:
                 tection, where a high degree of selectivity is
                 needed also for high-resistance faults. With this
                 characteristic, the protection relay need not to
                                                                      t [s] = 5.8 - 1.35 x loge   ( k xI I> )
                 be directional and the scheme can operate with-      where
                 out a pilot communication.                           t = operate time in seconds
                                                                      k = time multiplier
                                                                      I = measured phase current
                                                                      I> = set start current

                                                                      The graph of the characteristic is shown in Fig. 8.


Note!            If the set start current exceeds 2.5 x In, the       current setting above 2.5 x In of the low-set stage
                 maximum permitted continuous current carry-          will be regarded as being equal to 2.5 x In.
                 ing capacity of the energizing inputs (4 x In)
                 must be observed.                                    The operation of the low-set stage based on
                                                                      inverse time characteristic will be blocked by
                 At inverse time characteristic the effective set-    starting of the high-set stage. Then the operate
                 ting range of the low-set overcurrent stage is       time of the overcurrent or earth-fault unit is
                 0.5…2.5 x In, although start current settings        determined by the set operate time of the high-
                 within the range 2.5…5.0 x In can be set on the      set stage at heavy fault currents.
                 relay. At inverse time characteristic any start




                                                                                                                      19
                         t/s
                           70
                           60
                           50

                           40

                           30



                           20




                           10
                            9
                            8
                            7
                               6
                               5

                               4

                               3



                               2




                            1
                          0.9
                          0.8
                          0.7
                          0.6

                          0.5

                          0.4

                          0.3
                                                                                k

                          0.2                                                1.0

                                                                             0.8

                                                                             0.6

                          0.1                                                0.4
                         0.09
                         0.08                                                0.3
                         0.07
                                                                             0.2
                         0.06
                         0.05
                                                                             0.1
                         0.04
                                                                             0.05
                         0.03



                        0.02
                                1     2      3    4   5   6 7 8 9 10       20 I/I>




     Fig. 3. Extremely inverse-time characteristics of the overcurrent and earth-fault unit SPCJ 4D29.




20
                   t/s
                     70
                     60

                     50

                     40

                     30



                     20




                     10
                      9
                      8
                      7
                      6
                         5

                         4

                         3



                         2




                      1
                    0.9
                    0.8                                                   k
                    0.7                                                 1.0
                                                                        0.9
                    0.6
                                                                        0.8
                    0.5                                                 0.7
                                                                        0.6
                    0.4
                                                                        0.5
                    0.3                                                 0.4

                                                                        0.3
                    0.2

                                                                        0.2



                    0.1
                   0.09                                                 0.1
                   0.08
                   0.07
                   0.06
                                                                        0.05
                   0.05

                   0.04

                   0.03



                   0.02
                          1       2     3    4   5   6 7 8 9 10       20 I/I>




Fig. 4. Very inverse-time characteristics of the overcurrent and earth-fault unit SPCJ 4D29.




                                                                                               21
                        t/s
                              70
                              60
                              50

                          40


                              30



                              20




                         10
                          9
                           8
                           7
                              6
                              5

                              4


                              3                                                k

                                                                            1.0
                              2                                             0.9
                                                                            0.8
                                                                            0.7
                                                                            0.6
                                                                            0.5
                           1
                         0.9                                                0.4
                         0.8
                         0.7                                                0.3
                         0.6
                         0.5
                                                                            0.2
                         0.4


                         0.3

                                                                            0.1
                         0.2



                                                                            0.05

                         0.1
                        0.09
                        0.08
                        0.07
                        0.06

                        0.05

                        0.04

                        0.03



                        0.02
                                  1   2      3   4   5   6 7 8 9 10       20 I/I>




     Fig. 5. Normal inverse-time characteristics of the overcurrent and earth-fault unit SPCJ 4D29.




22
                   t/s
                    700
                    600
                    500

                    400

                    300



                    200




                    100
                     90
                     80
                     70
                     60
                     50

                     40


                     30



                     20




                     10
                      9
                      8
                                                                            k
                         7
                                                                          1.0
                         6                                                0.9
                         5                                                0.8
                                                                          0.7
                         4
                                                                          0.6
                                                                          0.5
                         3
                                                                          0.4

                         2
                                                                          0.3


                                                                          0.2

                      1
                    0.9
                    0.8
                    0.7
                                                                          0.1
                    0.6
                    0.5

                    0.4
                                                                          0.05
                    0.3


                    0.2
                                                                          I/I>
                         1       2      3   4   5   6   7 8 9 10     20




Fig. 6. Long-time inverse-time characteristics of the overcurrent and earth-fault unit SPCJ 4D29.




                                                                                              23
                        t/s

                          70
                          60
                          50

                          40

                          30



                          20




                          10
                              9
                              8
                              7
                              6
                              5

                              4                                                 k

                              3                                               1.0
                                                                              0.9
                                                                              0.8
                              2                                               0.7
                                                                              0.6
                                                                              0.5

                                                                              0.4

                           1
                         0.9                                                  0.3
                         0.8
                         0.7
                         0.6                                                  0.2

                         0.5

                         0.4

                         0.3                                                  0.1



                         0.2
                                                                              0.05




                         0.1
                        0.09
                        0.08
                        0.07
                        0.06
                        0.05

                        0.04

                        0.03



                        0.02
                                  1    2     3    4   5   6 7 8 9 10        20 I/I>




     Fig. 7. RI-type inverse-time characteristics of the overcurrent and earth-fault unit SPCJ 4D29.




24
                 t/s


                 70
                 60
                 50

                 40

                 30



                 20




                 10
                  9
                   8
                  7
                   6
                   5

                   4

                   3


                   2




                                                                                           k
                   1
                 0.9
                 0.8                                                                    1.0
                 0.7                                                                     0.9
                 0.6
                 0.5                                                                     0.8

                 0.4
                                                                                         0.7
                 0.3


                 0.2


                                                                                         0.6


                0.1
               0.09
               0.08
               0.07
               0.06
               0.05

                0.04
                                         0.05         0.1        0.2   0.3   0.4 0.5
               0.03


                0.02
                       1      2      3      4   5   6 7 8 9 10         20      30      40 I/I>




Fig. 8. RXIDG-type inverse-time characteristics of the overcurrent and earth-fault unit SPCJ 4D29.




                                                                                                 25
Technical data   Low-set overcurrent stage I>
                 Start current
                 - definite time characteristic                   0.5...5.0 x In
                 - inverse time characteristic                    0.5…2.5 x In
                 Start time, typ.                                 50 ms
                 Operation characteristic
                 - definite time characteristic
                    - operate time                                0.05...300 s
                 - Inverse time characteristic acc. to
                    BS 142 and IEC 255-4                          Extremely inverse
                                                                  Very inverse
                                                                  Normal inverse
                                                                  Long-time inverse
                 - special characteristic acc. to ABB standards   RI-type inverse
                                                                  RXIDG-type inverse
                   - time multiplier k                            0.05...1.00
                 Reset time, typ.                                 40 ms
                 Retardation time                                 <30 ms
                 Drop-off/pick-up ratio, typ.                     0.96
                 Operate time accuracy at definite time
                 operation characteristic                         ±2 % of set value or ±25 ms
                 Operate time accuracy class E at inverse
                 time characteristic                              5
                 Operation accuracy                               ±3% of set value


                 High-set overcurrent stage I>>
                 Start current I>>                                0.5...40.0 x In or ∞, infinite
                 Start time, typ.                                 40 ms
                 Operate time                                     0.04...300 s
                 Reset time, typ.                                 40 ms
                 Retardation time                                 <30 ms
                 Drop-off/pick-up ratio, typ.                     0.98
                 Operate time accuracy                            ±2% of set value or ±25 ms
                 Operation accuracy                               ±3% of set value


                 Low-set earth-fault stage I0>
                 Start current I0>                                0.1…0.8 x In
                 Start time, typ.                                 60 ms
                 Operation characteristic
                 - definite time characteristic
                   - operate time                                 0.05...300 s
                 - Inverse time characteristic acc. to
                   BS 142 and IEC 255-4                           Extremely inverse
                                                                  Very inverse
                                                                  Normal inverse
                                                                  Long-time inverse
                 - special characteristic acc. to ABB standards   RI-type inverse
                                                                  RXIDG-type inverse
                   - time multiplier k0                           0.05...1.00
                 Reset time, typ.                                 40 ms
                 Retardation time                                 <30 ms
                 Drop-off/pick-up ratio, typ.                     0.96
                 Operate time accuracy at definite time
                 operation characteristic                         ±2 % of set value or ±25 ms
                 Operate time accuracy class E at inverse
                 time characteristic                              5
                 Operation accuracy                               ±3% of set value


26
                High-set earth-fault stage I0>>
                Start current I0>>                                            0.1...10.0 x In or ∞, infinite
                Start time, typ.                                              40 ms
                Operate time                                                  0.05...300 s
                Reset time, typ.                                              40 ms
                Drop-off/pick-up ratio, typ.                                  0.98
                Operate time accuracy                                         ±2% of set value or ±25 ms
                Operation accuracy                                            ±3% of set value


Serial          When the combined overcurrent and earth-            the procedure of a manual calculation of the
communication   fault relay module SPCJ 4D29 is connected to        checksum.
parameters      a data communication unit. e.g. SRIO 1000M,
                over a fibre-optic SPA bus, the module will         The output signals are monitored by codes
Event codes     spontaneously generate event markings e.g. for      E17...E26 and these events can be included in or
                a printer. The events are printed out in the        excluded from the event reporting by writing an
                format: time, text and event code. The text can     event mask V157 to the module. The event
                be defined and written by the user into the         mask is a binary number coded to a decimal
                communication unit.                                 number. The event codes E17...E26 are repre-
                                                                    sented by the numbers 1, 2, 4...512. An event
                The events coded E1...E16 can be included in        mask is formed by multiplying the above num-
                or excluded from the event reporting by writing     bers either by 0, event not included in reporting
                an event mask V155 for the overcurrent events       or 1, event included in reporting and by adding
                and V156 for earth-fault events to the module       the numbers received. Check for the procedure
                over the SPA bus. The event masks are binary        of a manual calculation of the checksum.
                numbers coded to decimal numbers. The event
                codes E1...E8 are represented by the numbers 1,     The event mask V157 may have a value within
                2, 4...128. An event mask is formed by multiply-    the range 0...1024. The default value of the
                ing the above numbers either by 0, event not        combined overcurrent and earth-fault relay
                included in reporting, or 1, event included in      module SPCJ 4D29 is 768 which means that
                reporting and by adding the numbers received.       only the operations are included in the report-
                Check for the procedure of a manual calculation     ing.
                of the checksum.
                                                                    Codes E50...E54 and the events represented by
                The event masks V155 and V156 may have a            these cannot be excluded from the reporting.
                value within the range 0...255. The default
                value of the combined overcurrent and earth-        More information about the serial communica-
                fault relay module SPCJ 4D29 is 85 both for         tion over the SPA bus can be found in the
                overcurrent and earth-fault events, which means     manual "SPA bus communication protocol",
                that all start and operate events are included in   code No 34 SPACOM 2 EN1.
                the reporting, but not the resetting. Check for

                Event codes of the combined overcurrent and earth-fault relay module SPCJ 4D29:

                 Code     Event                                                    Weight factor    Default value
                                                                                                    of the factor

                 E1       Starting of stage I>                                            1                1
                 E2       Resetting of starting of stage I>                               2                0
                 E3       Operation of stage I>                                           4                1
                 E4       Resetting of operation of stage I>                              8                0
                 E5       Starting of stage I>>                                          16                1
                 E6       Resetting of starting of stage I>>                             32                0
                 E7       Operation of stage I>>                                         64                1
                 E8       Resetting of operation of stage I>>                           128                0

                          Default checksum for mask V155                                                  85




                                                                                                                  27
         Code   Event                                          Weight factor   Default value
                                                                               of the factor

         E9     Starting of stage I0>                                1               1
         E10    Resetting of starting of stage I0>                   2               0
         E11    Operation of stage I0>                               4               1
         E12    Resetting of operation of stage I0>                  8               0
         E13    Starting of I0>> stage                              16               1
         E14    Resetting of starting of stage I0>>                 32               0
         E15    Operation of stage I0>>                             64               1
         E16    Resetting of operation of stage I0>>               128               0

                Default checksum for mask V156                                      85



         E17    Output signal TS1 activated                          1               0
         E18    Output signal TS1 reset                              2               0
         E19    Output signal SS1 activated                          4               0
         E20    Output signal SS1 reset                              8               0
         E21    Output signal SS2 activated                         16               0
         E22    Output signal SS2 reset                             32               0
         E23    Output signal SS3 activated                         64               0
         E24    Output signal SS3 reset                            128               0
         E25    Output signal TS2 activated                        256               1
         E26    Output signal TS2 reset                            512               1

                Default checksum for mask V157                                    768



         E50    Restarting                                            *              -
         E51    Overflow of event register                            *              -
         E52    Temporary interruption in data communication          *              -
         E53    No response from the module over the data
                communication                                         *              -
         E54    The module responds again over the data
                communication                                         *              -

     0     not included in the event reporting
     1     included in the event reporting
     *     no code number
     -     cannot be programmed

     Note!
     The event codes E52-E54 are generated by the
     data communication unit (SACO 100M, SRIO
     500M, SRIO 1000M, etc.)




28
Data to be trans-       In addition to the spontaneous data transfer the   All the data are available in channel 0.
ferred via the fibre-   SPA bus allows reading of all input values (I-
optic serial bus        values), setting values (S-values), information    R = data to be read from the unit
                        recorded in the memory (V-values), and some        W = data to be written to the unit
                        other data. Further, part of the data can be       (P) = writing enabled by password
                        altered by commands given over the SPA bus.

                        Data                                       Code          Data          Values
                                                                                 direction

                        INPUTS

                        Current on phase L1                        I1            R             0...63 x In
                        Current on phase L2                        I2            R             0...63 x In
                        Current on phase L3                        I3            R             0...63 x In
                        Neutral current                            I4            R             0...21 x In
                        Blocking or control signal                 I5            R             0 = no blocking
                                                                                               1 = external blocking or
                                                                                                    control signal active

                        OUTPUTS

                        Starting of stage I>                       O1            R             0 = I> stage not started
                                                                                               1 = I> stage started
                        Operation of stage I>                      O2            R             0 = I> stage not tripped
                                                                                               1 = I> stage tripped
                        Starting of stage I>>                      O3            R             0 = I>> stage not started
                                                                                               1 = I>> stage started
                        Operation of stage I>>                     O4            R             0 = I>> stage not tripped
                                                                                               1 = I>> stage tripped
                        Starting of stage I0>                      O5            R             0 = I0> stage not started
                                                                                               1 = I0> stage started
                        Operation of stage I0>                     O6            R             0 = I0> stage not tripped
                                                                                               1 = I0> stage tripped
                        Starting of stage I0>>                     O7            R             0 = I0>> stage not started
                                                                                               1 = I0>> stage started
                        Operation of stage I0>>                    O8            R             0 = I0>> stage not tripped
                                                                                               1 = I0>> stage tripped
                        Signal START1 TS1                          O9            R, W (P)      0 = signal not active
                                                                                               1 = signal active
                        Signal START2 SS1                          O10           R, W (P)      0 = signal not active
                                                                                               1 = signal active
                        Signal ALARM1 SS2                          O11           R, W (P)      0 = signal not active
                                                                                               1 = signal active
                        Signal ALARM2 SS3                          O12           R, W (P)      0 = signal not active
                                                                                               1 = signal active
                        Signal TRIP TS2                            O13           R, W (P)      0 = signal not active
                                                                                               1 = signal active

                        Operate output relays                      O41           R, W (P)      0 = not operated
                                                                                               1 = operated




                                                                                                                            29
     Data                                  Code   Data        Values
                                                  direction

     Memorized I> start signal             O21    R           0 = signal not active
                                                              1 = signal active
     Memorized I> operate signal           O22    R           0 = signal not active
                                                              1 = signal active
     Memorized I>> start signal            O23    R           0 = signal not active
                                                              1 = signal active
     Memorized I>> operate signal          O24    R           0 = signal not active
                                                              1 = signal active
     Memorized I0> start signal            O25    R           0 = signal not active
                                                              1 = signal active
     Memorized I0> operate signal          O26    R           0 = signal not active
                                                              1 = signal active
     Memorized I0>> start signal           O27    R           0 = signal not active
                                                              1 = signal active
     Memorized I0>> operate signal         O28    R           0 = signal not active
                                                              1 = signal active
     Memorized output signal TS1           O29    R           0 = signal not active
                                                              1 = signal active
     Memorized output signal SS1           O30    R           0 = signal not active
                                                              1 = signal active
     Memorized output signal SS2           O31    R           0 = signal not active
                                                              1 = signal active
     Memorized output signal SS3           O32    R           0 = signal not active
                                                              1 = signal active
     Memorized output signal TS2           O33    R           0 = signal not active
                                                              1 = signal active


     PRESENT SETTING VALUES

     Present start value for stage I>      S1     R           0.5...5.0 x In
     Present operate time or time          S2     R           0.05...300 s
     multiplier for stage I>                                  0.05…1.0
     Present start value for stage I>>     S3     R           0.5...40 x In
                                                              999 = not in use (∞)
     Present operate time for stage I>>    S4     R           0.04...300 s
     Present start value for stage I0>     S5     R           0.1...0.8 x In
     Present operate time or time          S6     R           0.05...300 s
     multiplier for stage I0>                                 0.05…1.0
     Present start value for stage I0>>    S7     R           0.1...10.0 x In
                                                              999 = not in use (∞)
     Present operate time for stage I0>>   S8     R           0.05...300 s
     Present checksum of                   S9     R           0...255
     switchgroup SGF1
     Present checksum of                   S10    R           0...255
     switchgroup SGF2
     Present checksum of                   S11    R           0...255
     switchgroup SGB
     Present checksum of                   S12    R           0...255
     switchgroup SGR1
     Present checksum of                   S13    R           0...255
     switchgroup SGR2
     Present checksum of                   S14    R           0...255
     switchgroup SGR3




30
Data                              Code   Data        Values
                                         direction

MAIN SETTING VALUES

Start current of stage I>,        S21    R, W (P)    0.5...5.0 x In
main setting
Operate time or time multiplier   S22    R, W (P)    0.05...300 s
of stage I>, main setting                            0.05…1.0
Start current of stage I>>,       S23    R, W (P)    0.5...40.0 x In
main setting
Operate time of stage I>>,        S24    R, W (P)    0.04...300 s
main setting
Start current of stage I0>,       S25    R, W (P)    0.1...0.8 x In
main setting
Operate time or time multiplier   S26    R, W (P)    0.05...300 s
of stage I0>, main setting                           0.05…1.0
Start current of stage I0>>,      S27    R, W (P)    0.1...10.0 x In
main setting
Operate time of stage I0>>,       S28    R, W (P)    0.05...300 s
main setting
Checksum of switchgroup SGF1,     S29    R, W (P)    0...255
main setting
Checksum of switchgroup SGF2,     S30    R, W (P)    0...255
main setting
Checksum of switchgroup SGB,      S31    R, W (P)    0...255
main setting
Checksum of switchgroup SGR1,     S32    R, W (P)    0...255
main setting
Checksum of switchgroup SGR2,     S33    R, W (P)    0...255
main setting
Checksum of switchgroup SGR3,     S34    R, W (P)    0...255
main setting


SECOND SETTING VALUES

Start current of stage I>,        S41    R, W (P)    0.5...5.0 x In
second setting
Operate time or time multiplier   S42    R, W (P)    0.05...300 s
of stage I>, second setting                          0.05…1.0
Start current of stage I>>,       S43    R, W (P)    0.5...40.0 x In
second setting
Operate time of stage I>>,        S44    R, W (P)    0.04...300 s
second setting
Start current of stage I0>,       S45    R, W (P)    0.1...0.8 x In
second setting
Operate time or time multiplier   S46    R, W (P)    0.05...300 s
of stage I0>, second setting                         0.05…1.0
Start current of stage I0>>,      S47    R, W (P)    0.1...10.0 x In
second setting
Operate time of stage I0>>,       S48    R, W (P)    0.05...300 s
second setting




                                                                       31
     Data                                   Code        Data        Values
                                                        direction

     Checksum of switchgroup SGF1,          S49         R, W (P)    0...255
     second setting
     Checksum of switchgroup SGF2,          S50         R, W (P)    0...255
     second setting
     Checksum of switchgroup SGB,           S51         R, W (P)    0...255
     second setting
     Checksum of switchgroup SGR1,          S52         R, W (P)    0...255
     second setting
     Checksum of switchgroup SGR2,          S53         R, W (P)    0...255
     second setting
     Checksum of switchgroup SGR3,          S54         R, W (P)    0...255
     second setting

     Operate time for the circuit breaker   S61         R, W (P)    0.1...1.0 s
     failure protection


     RECORDED AND MEMORIZED PARAMETERS

     Current on phase L1 at starting        V11...V51   R           0...63 x In
     or operation
     Current on phase L2 at starting        V12...V52   R           0...63 x In
     or operation
     Current on phase L3 at starting        V13...V53   R           0...63 x In
     or operation
     Neutral current I0 at starting         V14...V54   R           0...21 x In
     or operation
     Duration of the latest start           V15...V55   R           0...100%
     situation of stage I>
     Duration of the latest start           V16...V56   R           0...100%
     situation of stage I>>
     Duration of the latest start           V17...V57   R           0...100%
     situation of stage I0>
     Duration of the latest start           V18...V58   R           0...100%
     situation of stage I0>>

     Maximum demand current for 15 min.     V1          R           0...2.5 x In
     Number of starts of stage I>           V2          R           0...255
     Number of starts of stage I>>          V3          R           0...255
     Number of starts of stage I0>          V4          R           0...255
     Number of starts of stage I0>>         V5          R           0...255
     Phase conditions during trip           V6          R            1 = IL3>,   2 = IL2>,
                                                                     4 = IL1>,   8 = I 0>
                                                                    16 = IL3>>, 32 = IL2>>
                                                                    64 = IL1>>,128 = I0>>
     Operation indicator                    V7          R           0...9
     Highest maximum demand current         V8          R           0…2.55 x In
     15 minute value


     CONTROL PARAMETERS

     Resetting of output relays             V101        W           1 = output relays and all
     at latched output                                                  information from the
                                                                        display are reset
     Resetting of output relays             V102        W           1 = output relays and
     and recorded data                                                  registers are reset

32
Data                                       Code          Data          Values
                                                         direction

Remote control of settings                 V150          R, W          0 = main settings activated
                                                                       1 = second settings activated,
                                                                            see chapter "Description
                                                                            of function"
Event mask word for                        V155          R, W          0...255, see chapter
overcurrent events                                                     "Event codes"
Event mask word for                        V156          R, W          0...255, see chapter
earth-fault events                                                     "Event codes"
Event mask word for                        V157          R, W          0...1023, see chapter
output signal events                                                   "Event codes"
Opening of password for                    V160          W             1...999
remote settings
Changing or closing of password            V161          W (P)         0...999
for remote settings
Activating of self-supervision output      V165          W             1 = self-supervision output
                                                                           is activated and IRF
                                                                           LED turned on
                                                                       0 = normal mode

EEPROM formatting                          V167          W (P)         2 = formatting, to be
(will restore factory settings)                                            followed by power reset

Internal fault code                        V169          R             0...255

Data comm. address of the module           V200          R, W          1...254
Data transfer rate                         V201          R, W          4800 or 9600 Bd (R)
                                                                       4.8 or 9.6 kBd (W)
Software version symbol                    V205          R             037_ or 056_

Event register reading                     L             R             time, channel number
                                                                       and event code
Re-reading of event register               B             R             time, channel number
                                                                       and event code
Type designation of the module             F             R             SPCJ 4D29
Reading of module status data              C             R             0 = normal state
                                                                       1 = module been subject
                                                                           to automatic reset
                                                                       2 = overflow of event regist.
                                                                       3 = events 1 and 2 together
Resetting of module state data             C             W             0 = resetting
Time reading and setting                   T             R, W          00.000...59.999 s

The event register can be read by L-command        The setting values S1...S14 are the setting values
only once. Should a fault occur e.g. in the data   used by the protection functions. All the settings
transfer, the contents of the event register may   can be read or written. A condition for writing
be re-read using the B-command. When re-           is that remote set password has been opened.
quired, the B-command can be repeated. Gen-
erally, the control data communicator SACO         When changing settings, the relay unit will
100M reads the event data and forwards them to     check that the variable values are within the
the output device continuously. Under normal       ranges specified in the technical data of the
conditions the event register of the module is     module. If a value beyond the limits is given to
empty. The data communicator also resets ab-       the unit, either manually or by remote setting,
normal status data, so this data is normally a     the unit will not perform the store operation but
zero.                                              will keep the previous setting.




                                                                                                  33
Fault codes   Shortly after the internal self-supervision system   indicates the fault type. When a fault code
              has detected a permanent relay fault, the red IRF    appears on the display, the code number should
              indicator is lit and the output relay of the self-   be recorded and given to the authorized repair
              supervision system operates. Further, in most        shop when overhaul is ordered. In the table
              fault situations, an auto-diagnostic fault code is   below some fault codes that might appear on the
              shown on the display. This fault code consists of    display of the SPCJ 4D29 module are listed:
              a red figure 1 and a green code number which

               Fault code     Type of error in module

                      4       Faulty trip relay path or missing output relay card
                     30       Faulty program memory (ROM)
                     50       Faulty work memory (RAM)
                     51       Parameter memory (EEPROM) block 1 faulty
                     52       Parameter memory (EEPROM) block 2 faulty
                     53       Parameter memory (EEPROM) block 1 and block 2 faulty
                     54       Parameter memory (EEPROM) block 1 and block 2 faulty with different
                              checksums
                     56       Parameter memory (EEPROM) key faulty. Format by writing a "2" to
                              variable V167
                   195        Too low value in reference channel with multiplier 1
                   131        Too low value in reference channel with multiplier 5
                    67        Too low value in reference channel with multiplier 25
                   203        Too high value in reference channel with multiplier 1
                   139        Too high value in reference channel with multiplier 5
                    75        Too high value in reference channel with multiplier 25
                   252        Faulty filter on I0 channel
                   253        No interruptions from the A/D-converter




34
                                   1MRS 750629-MUM EN




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P.O.Box 699
FIN-65101 VAASA
Finland
Tel. +358 (0)10 22 4000
Fax.+358 (0)10 22 41094
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